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5036 Jonsson Engineering Center
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amir.hirsa@gmail.com
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518-276-6997
About
Rensselaer Polytechnic Institute; 2005 - present Professor of Mechanical and Aerospace Engineering; 1996 - 2005 Associate Professor; 1990 - 1996 Assistant Professor, also, Associate Head for Graduate Studies (2007 – present) Rensselaer Polytechnic Institute; 2003 - 2009 Joint Appointment (by courtesy) Howard P. Isermann Department of Chemical and Biological Engineering University of California in Santa Barbara, Department of Chemical Engineering; 1/'07 - present Visiting Professor Cornell University, School of Chemical Engineering 1/'00 - 12/'00 Visiting Associate Professor Naval Surface Warfare Center (Formerly David Taylor Research Center), Hydrodynamics Division, Code 1542, Bethesda, Maryland. 5/'92 - 8/'92 Faculty Research Fellow Editorial board member, Proceedings of The Royal Society (London) A: Mathematical, Physical & Engineering Sciences (Proc. R. Soc. A)
Ph.D. University of Michigan
1990 Aerospace Engineering
M.S.E. University of Michigan
1986 Aerospace Engineering
B.S. San Jose State University
1983, Aeronautics
Professional Experience
Rensselaer Polytechnic Institute; 2005 present Professor of Mechanical and Aerospace Engineering; 1996 - 2005 Associate Professor; 1990 - 1996 Assistant Professor; and Associate Head for Graduate Studies (2007 - 2009)
Rensselaer Polytechnic Institute; 2003 - present Joint Appointment (by courtesy) Howard P. Isermann Department of Chemical and Biological Engineering
University of California in Santa Barbara, Department of Chemical Engineering; 1/2007 - 8/2007 Visiting Professor
Cornell University, School of Chemical Engineering; 1/2000 - 12/2000 Visiting Associate Professor
Professional Societies
American Physical Society (Division of Fluid Dynamics)
Member (1988 - Present)
Miscellaneous
Holder, FAA-issued "Airframe and Power Plant Mechanic Certificate"
Research
Fluid mechanics and interfacial phenomena. Current research interests are in the area of interfacial hydrodynamics, including monolayer hydrodynamics (such as measurements and modeling of intrinsic interfacial viscosities for lung surfactant applications), and other surface tension effects such as capillarity (e.g. capillary instability and its applications to liquid lenses). Our work in the area of bio-fluids also includes studies of protein structure in the presence of flow, especially at the air/water interface. We have made advances to experimental techniques including particle image velocimetry, nonlinear optical technique of second-harmonic generation, as well as Brewster angle microscopy for flowing systems. We also work in the area of microfluidics, especially in relation to free surface effects. Our research has received funding from the Office of Naval Research (ONR), Defense Advanced Research Projects Agency (DARPA), National Science Foundation (NSF), and National Aeronautics and Space Administration (NASA).
Patents:
- Hirsa, A.H. and Lopez, C.A., Pinned-Contact Oscillating Liquid Lens and Imaging System, United States Patent No. US 8,148,706 B2 (issued April 3, 2012)
- Hirsa, A.H., Malouin, B.A., Vogel, M.J., Cheng, L., and Olles, J.D., Pinned-Contact, Oscillating Liquid-Liquid Lens and Imaging system, US and International Patent Application No. PCT/US11/45346, filed July 26, 2011 (pending)
- Hirsa A.H., Malouin, B.A., and Vogel, M.J., Reconfigurable, Non-Oscillating Liquid Lens and Imaging System, US and International Patent Application No. PCT/US11/45353, filed July 26, 2011 (pending)
Teaching
| "Turbulence" | (Revised course) | Graduate level |
| "Viscous Flow II" | (Revised course) | Graduate level |
| "Incompressible Flow" (Hydrodynamics) | (New course) | Graduate level |
| "Experimental Methods in Macro & Micro-Fluid Dynamics | (New course) | Graduate level |
| "Viscous Flow" | (New Course) | Graduate level |
| "Turbulence & Free Surface Flows" | (New Course) | Graduate level |
| "Propulsion Systems" | (Revised course) | Senior level |
| "Experimental Fluid Dynamics I & II | (Revised course) | Senior level |
| "Energy Systems Laboratory" | (Existing course) | Senior level |
| "Vehicular Performance" | (Revised course) | Senior level |
| "Aerodynamics-I" | (Existing course) | Junior level |
| "Thermal & Fluids Engineering Lab" | (New course) | Junior level |
| "Engineering Thermodynamics" | (Existing course) | Sophmore level |
| "Thermal and Fluids Engineering I | (Revised course) | Sophmore level |
Post-doc Supervision
| Aditya (Adi) Raghunandan | Ring-Sheared Drop. May 2018 - Present |
| Shreyash Gulati | Ring-Sheared Drop. January - August 2018 |
| SimaDidari | Ring-Sheared Drop. June - August 2014 |
| Lili Cheng | Materials based study of liquid lenses. July 2009 - June 2010 |
| Michael J. Vogel | Brewster angle microscope observations of monomolecular films. August - December 2002 |
| Reza Miraghaie | Flow-induced structuring of protein monolayers. March -September 2002 |
| Can (John) Gulen | Rapid phase transition in retrograde fluids. July 1992 - September 1993 |
Thesis Supervision: Ph.D. (committee chair for the following individuals:)
| Shannon Griffin | |
| Nicholas E. Debono | |
| Joseph Adam | |
| Aditya (Adi) Raghunandan | 2018 |
| Shreyash Gulati | 2017 |
| James E. Young | "The Characterization of Flow-Induced Protein Crystallization at the Air/Water Interface," 2013 |
| Joseph D. Olles | "Oscillatory Flow in the Vicinity of Pinned-Contact Capillary Surfaces, " 2013 |
| David Posada | "Amyloid Fibril Formation in Solution and at Interfaces in Shearing Flows," 2013 |
| Amir H. Sadoughi | "Newtonian to Non-Newtonian Flow Transition in a Lung Surfactant Model (DPPC)" 2012 |
| Bernard A. Malouin Jr. | "Electromagnetic Forcing of Capillary Surfaces and Application to Liquid Lens Systems," 2010 |
| Ali Nejatbakhsh | "Transport of Proteins to the Air/Water in the Presence of Flow with Inertia," 2007 |
| Carlos A. Lopez | "Capillary Micro-Switches," 2006 |
| Jonathan J.F. Leung | "Measurements of Flow-Induced Structuring of Monolayers," 2007 |
| Michael J. Vogel | "Measurements of Monolayer Hydrodynamics at an Air/Water Interface," 2002 |
| Reza Miraghaie | "Measurements of Interfacial Shear Viscosity on Monolayer-Covered Surfaces via Rotating Flow with Inertia," 2002 |
| Kyle P. Judd | "Theoretical and Experimental Investigation of Vortex Breakdown," (co-chaired with Z. Rusak) 1999 |
| Seokwoo Kim | "An Experimental Investigation of a Columnar Vortex Terminating Normal to a Gas/Liquid or a Solid/Liquid Interface," 1996 |
| Robert E. Athans | "The Rapid Expansion of a Near-critical Retrograde Fluid," 1995 |
| Larry M. Logory | "An Experimental Investigation of Near Surface Wake Turbulence and Surfactant Rheology," 1995 |
Thesis Supervision: M.S.
| Joseph Adam | 2018 |
| Samantha A. McBride | "Effect of Hydrophobic Residues on Amyloid Formation under Steady Shear and at Interfaces," 2015 |
| Evan G. Finn | "Theoretical Investigation of Surface Chemistry on Geologic CO2 Capillary Confinement," 2014 |
| James E. Young | "Toward Optimized Two-Dimensional Protein Crystallization: A Study on the Effects of Aggregation," 2012 |
| Jonathan J.F. Leung | "Endwall Effects in Periodically Driven Cavity Flow," 2004 |
| Christopher Tomaso | "Measurements of Monomolecular Films Spreading on Water," 2003 |
| Douglas V. Milone | "Measurements and Modeling of Surface Shear and Dilatational Viscosities at a Gas/Liquid Interface," 2001 |
| Avanindra A. Joshi | "Measurements of Intrinsic Interfacial Viscosities as Functions of Interfacial Thermodynamic State," 1999 |
| Hongsuk J. Jin | "Optical Techniques for Measurements of Surfactant Concentration and Subsurface Shear for Monolayer Downstream of a Reynolds Ridge," 1998 |
| Jason D. Gayton | "Unsteady Velocity Field and Surface Elevation Profile Measurements at a Contaminated Air/Water Interface," 1997 |
| Joseph M. Hynes | "A Numerical Model of Two-Phase Flows in a Quarter-Circle Profile Nozzle," 1994 |
| Jared M. Davis | "An Experimental Investigation of the Secondary Vorticity Shed by a Vortex Pair Approaching a Contaminated Free Surface," 1994 |
| Christine A. Locke | "Origin and Evolution of Cross-Axis Vorticity in Perturbed Vortex Pairs," 1993 |
| Mark D. Rubin | "An Investigation of Short-Wave Instability in a Laminar Vortex Pair," 1991 |
Recognition
- Classroom Excellence Award, School of Engineering, RPI (2015)
- Lewis T. Assini Undergraduate Teaching and Counseling Award, Dept. Mechanical Engineering, Aeronautical Engineering and Mechanics, RPI (2001)
- Navy-ASEE Summer Research Fellowship (1992)
Invited Lectures
(2009-2018 to be added)
- 2D Protein Crystallization Induced by Shearing Bulk Flow: What can Classical Fluid Mechanics Tell us? Invited presentation in the School of Engineering, UC Merced, CA (2008).
- 2D Protein Crystallization Induced by Shearing Bulk Flow: What can Classical Fluid Mechanics Tell us? Invited presentation in the Engineering Department, Harvey Mudd College, Claremont, CA (2007).
- Low-Dissipation Capillary Switches: Science & Engineering, Invited seminar in the Chemical Engineering Department, Purdue University, West Lafayette, IN (2007).
- Monolayer Hydrodynamics. A series of six (6) lectures presented in the Mechanical Engineering Department, UC Santa Barbara, CA and simulcasted at Sandia National Laboratory, NM (2007).
- 2D protein crystallization induced by shearing bulk flow: What can classical fluid mechanics tell us? Invited seminar in Mechanical Engineering, Caltech, Pasadena, CA (2007).
- Low-Dissipation Capillary Switches: Science & Engineering, Invited seminar in the Chemical Engineering Department, UC Santa Barbara, CA (2007).
- Low-Dissipation Capillary Switches at Small Scales, Invited seminar at the Benjamin Levich Institute for Physico-Chemical Hydrodynamics, City College of New York, NY (2005).
- "Hydrodynamics of Insoluble (Langmuir) Monolayers," Invited seminar in the Department of Chemical Engineering, The Pennsylvania State University, University Park, PA (2001).
- "Measurement and Computation of Insoluble Monolayers on Uniform or Rotating Flows," Invited seminar in the Department of Mathematical Sciences, University of Delaware, Newark, DE (2001).
- "Direct Determination of Interfacial Viscosities via Velocity and Surfactant Concentration Measurements," Invited seminar at Dow Corning Corp., Midland, MI (2000).
- "Determination of Air/Water Interfacial Properties Utilizing a Rotating Flow," Invited presentation in the Stability, Transition and Turbulence Seminar series, Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY (2000).
- "Determination of Air/Water Interfacial Properties Utilizing a Planar flow," Invited seminar in the School of Chemical Engineering, Cornell University, Ithaca, NY (2000).
- "Direct Determination and Modeling of Intrinsic Interfacial Viscosities at a Gas/Liquid Interface," Invited seminar in the Workshop on Surfactant Flows at Interfaces, Laguna Beach, CA (2000).
- "Dynamics of Surfactant-Influenced Air/Water Interfaces," Invited seminar in the School of Chemical Engineering, Cornell University, Ithaca, NY (1999).
- "Measurements of the Velocity Field and Surfactant Surface Concentration Behind a Reynolds Ridge," Invited seminar in the Department of Aerospace and Mechanical Engineering, Boston University, Boston, MA (1999).
- "Direct Determination of Interfacial Viscosities via Velocity and Surfactant Concentration Measurements at an Air/Water Interface," Invited seminar in the Department of Mechanical Engineering, State University of New York, Binghamton, NY (1999).
- "Measurements and Computations of Free Surface Flows in the Presence of Surfactants," Invited seminar in the Department of Mechanical Engineering, University of Maryland, College Park, MD (1998).
- "Hydrodynamic Coupling of Viscoelastic Gas/Liquid Interfaces," Invited seminar in the Department of Mathematics, The Pennsylvania State University, University Park, PA (1997).
- "Fluid Dynamics of Contaminated Gas/Liquid Interfaces," Invited seminar in the Department of Environmental and Energy Engineering, Rensselaer Polytechnic Institute (1997).
- "Interaction of Surfactants with Shear Flows and Surface Waves," Invited seminar at the Office of Naval Research, Remote Sensing Program, Arlington, VA (1996).
- "Interaction of Turbulence with an Air-Water Interface and the Effects of Surfactants," Invited seminar in the Department of Aerospace and Mechanical Engineering, State University of New York, Buffalo, NY (1996).
- "Effects of Surfactants on Free-Surface Turbulence," Invited seminar at the Second Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1994).
- "On the Interaction of Vortical Flows with a Free Surface," Invited seminar at the Rutgers University, Mechanical and Aerospace Engr. Colloquium Series, Piscataway, NJ (1994).
- "Dynamics of Trailing Vortices near Boundaries," Invited seminar in the Department of Aeronautics, San Jose State University, San Jose, CA (1990).
- "An Experimental Investigation of Vortex Pair Interaction with a Clean or Contaminated Free Surface," Invited seminar in the Department of Mechanical Engineering, Aeronautical Engineering and Mechanics, Rensselaer Polytechnic Institute (1990).
Contributed Lectures
(2005-2018 to be added)
- "Effect of Flow with Inertia on Monolayer Mesoscale Structure," 57th Annual Conference of the American Physical Society, Div. Fluid Dynamics, Seattle, WA (2004).
- Mesoscale and Macroscale Patterning of Langmuir Monolayers by Bulk Flow," 56th Annual Conference of the American Physical Society, Div. Fluid Dynamics, East Rutherford, NJ (2003).
- "Flow Induced Structuring on the Surface of Liquids: Shaping Monolayers via Bulk Flow Instabilities," 55th Annual Conference of the American Physical Society, Div. Fluid Dynamics, Dallas, TX (2002).
- "Symmetry Breaking to a Rotating Wave in a Lid-Driven Cylinder with a Free," 55th Annual Conference of the American Physical Society, Div. Fluid Dynamics, Dallas, TX (2002).
- "Surface Tension Gradients due to Bulk Flow Coupling at an Air/Water Interface," 75th American Chemical Society, Colloid and Surface Science Symposium, Pittsburgh, PA (2001).
- "Navier-Stokes Computations of a Swirling Free-Surface Flow in the Presence of Insoluble Surfactants," 53rd Annual Conference of the American Physical Society, Div. Fluid Dynamics, Washington, DC (2000).
- "Measurements of the Velocity Field at an Air/Water Interface with an Insoluble Surfactant," 52nd Annual Conference of the American Physical Society, Div. Fluid Dynamics, New Orleans, LA (1999).
- "Influence of Nonlinear Equation of State on Contamination Fronts at Air/Water Interfaces," poster presented at conference on Interfaces for the Twenty First Century, Monterey, CA (1999).
- "Measurements in a High Reynolds Number Deep-Channel Viscometer," 51st Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Philadelphia, PA (1998).
- "Direct Determination of Concentration-Dependent Surface Shear and Dilatational Viscosities at a Contaminated Gas/Liquid Interface: Theoretical and Practical Considerations," Sixth Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1998).
- "Direct Determination of Surface Shear and Dilatational Viscosities," 51st Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Philadelphia, PA (1998).
- "Direct Determination of Surface Dilatational Viscosity," 50th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, San Francisco, CA (1997).
- "Free Surface Velocity and Elevation Measurement Techniques as Applied to the Interaction of a Vortex Pair with a Contaminated Interface," 50th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, San Francisco, CA (1997).
- "Interaction of a Columnar Vortex with a Solid Wall," 49th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Syracuse, NY (1996).
- "Rheological Behavior of Surfactants as Obtained by Surface Concentration and Bulk Velocity Measurements in Vortex Flows," Third Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1995).
- "A Photographic Study of a Small Flashing Jet," ASME Fluids Engineering Annual Conference, Hilton Head Island, SC (1995).
- "Velocity Field and Surfactant Concentration Measurement Techniques as Applied to the Interaction of a Vortex Pair with a Free Surface," ASME Fluids Engineering Annual Conference, Hilton Head Island, SC (1995).
- "Interaction of a Columnar Vortex with a Free Surface," 47th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Atlanta, GA (1994).
- "Structure of Turbulence in the Surface Layer of a Flat-Plate Wake," Second Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1994).
- "Structure of Turbulence in the Wake of a Surface-piercing Flat Plate," 46th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Albuquerque, NM (1993).
- "Velocity Field in the Wake of a Surface-Piercing Flat Plate," 46th Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Albuquerque, NM (1993).
- "Interaction of Wake Turbulence with a Free Surface," First Annual Free-Surface Turbulence Workshop, sponsored by ONR - Caltech, Pasadena, CA (1993).
- "Interaction of Wake Turbulence with a Free Surface," Third Annual Free Surface Vorticity Workshop, sponsored by ONR - UC San Diego, La Jolla, CA (1992).
- "Measurements and Computations of Vortex Pair Interaction with a Clean or Contaminated Free Surface," Eighteenth Symposium of Naval Hydrodynamics - Univ. Michigan, Ann Arbor, MI (1990).
- "Effect of Contaminants on the Interaction of a Vortex Pair with a Free Surface," 43rd Annual Conference of the American Physical Society, Div. of Fluid Dynamics, Cornell University, Ithaca, NY (1990).
- "2-D & 3-D Aspects of Vortex Pair Interaction with a Free Surface," 42nd Annual Conference of the American Physical Society, Div. of Fluid Dynamics, NASA Ames Res. Center, Palo Alto, CA (1989).
- "Interaction of a Vortex Pair with a Free Surface," 41st Annual Conference of the American Physical Society, Div. of Fluid Dynamics, State University of New York, Buffalo, NY (1988).
Publications
The following is a selection of recent publications in Scopus. Amir Hirsa has 81 indexed publications in the subjects of Engineering, Physics and Astronomy, Chemical Engineering.
News
Refereed Journal Publications
Adam, J.A., Middlestead, H.R., Debonon, N.E., and Hirsa, A.H., Effects of Shear Rate and Protein Concentration on Amyloidogenesis via Interfacial Shear, Journal of Physical Chemistry B125, 36, 10355-10363 (2021).
Hirsa, A.H. and Lopez, J.M., Coupling Vortical Bulk Flows to the Air–Water Interface: From Putting Oil on Troubled Waters to Surfactants on Protein Solutions, Fluids6, 6, 198 (2021).
Riley, F.P., McMackin, P.M., Lopez, J.M., and Hirsa, A.H., Flow in a Ring-Sheared Drop: Drop Deformation, Physics of Fluids33 (4), 042117 (2021).
Lanzerotti, M.Y., Brakke, K., Allen, K, Blackmon, W., Hartke, J., and Hirsa, A.H., and Lopez, J.M., Formation of a Single Drop of Molten Steel Following Bursting of Liquid Film in a Vertical Steel Plate Illuminated by a High Energy Laser, Applied Physics A 127 (8), 1-16, (2021).
Adam, J.A., Gulati, S., Hirsa, A.H., and Bonocora, R.P., Growth of Microorganisms in an Interfacially Driven Space Bioreactor Analog, npj (Nature) Microgravity6, 11 (2020).
McMackin, P.M., Griffin, S.R., Riley, F.P., Gulati, S., Debono, N.E., Raghunandan, A., Lopez, J.M., and Hirsa, A.H., Simulated Microgravity in the Ring-Sheared Drop, npj (Nature) Microgravity6, 2 (2020).
Gulati, S., Riley, F.P., Hirsa, A.H., and Lopez, J.M. Flow in a Containerless Liquid system: Ring-Sheared Drop with Finite Surface Shear Viscosity, Physical Review Fluids4, 044006 (2019).
Raghunandan, A., Hirsa, A.H., Underhill, P.T., and Lopez, J.M., Predicting Steady Shear Rheology of Condensed-Phase Monomolecular Films at the Air-Water Interface, Physical Review Letters121, 164502 (2018).
Gulati, S., Riley, F.P., Lopez, J.M., and Hirsa. A.H. Mixing within Drops via Surface Shear Viscosity, International Journal of Heat & Mass Transfer125, 559-568 (2018).
Rasheed, F, Raghunandan, A., Hirsa, A.H., and Lopez, J.M., Oscillatory Shear Rheology Measurements and Newtonian Modeling of Insoluble Monolayers, Physical Review Fluids 2, 044002 (2017).
Balaraj, V.S., zeng, P.C.H., Sanford, S.P., McBride, S.A., Raghunandan, A., Lopez, J.M., and Hirsa, A.H., Surface Shear Viscosity as a Macroscopic Probe of Amyloid Fibril Formation at a Fluid Interface, Soft Matter13, 1780-1787 (2017). Note, this paper was featured on the (outside) backcover of the issue.
Underhill, P.T., Hirsa, A.H., and Lopez, J.M. Modelling Steady Shear Flows of Newtonian Liquids with non-Newtonian Interfaces, Journal of Fluid Mechanics814, 5-23 (2017).
Gulati, S., Raghunandan, A., Rasheed, F., McBride, S.A., and Hirsa, A.H., Ring-Sheared Drop (RSD): Microgravity Module for Containerless Flow Studies, Microgravity Science & Technology 29 (1-2), 81-89 (2017).
McBride, S.A, Sanford, S.P., Lopez, J.M., and Hirsa, A.H., Shear-Induced Amyloid Fibrillization: Role of Inertia, Soft Matter12, 3461-3467 (2016).
Dean, J.L. and Hirsa, A.H., Performance of a Microscope with an Embedded Oscillating Pinned-Contact Liquid Lens, Applied Optics54 (27), 8228-8234 (2015).
McBride, S.A, Tilger, C.F., Sanford, S.P., Tessier, P.T., and Hirsa, A.H., Comparison of Human and Bovine Insulin Amyloidogenesis under Uniform Shear, Journal of Physical Chemistry B119, 10426−10433 (2015).
Raghunandan, A., Lopez, J.M., and Hirsa, A.H., Bulk Flow Driven by a Viscous Monolayer, Journal of Fluid Mechanics785, 283-300 (2015).
Young, J.E., Posada, D., Lopez, J.M., and Hirsa, A.H., Flow-Induced 2D Protein Crystallization: Characterization of the Coupled Interfacial and Bulk Flows, Soft Matter11, 3618-3628 (2015).
Lopez, J.M. and Hirsa, A.H., Coupling of the Interfacial and Bulk Flow in Knife-Edge Viscometers, Physics of Fluids 27, 042102- (2015).
Tilger, C.F., Olles, J.D., Hirsa, A.H. Phase Behavior of Oscillating Double Droplets, Applied Physics Letters103, 264105-1-4 (2013).
Sadoughi A, Lopez JM & Hirsa AH Transition from Newtonian to Non-Newtonian Surface Shear Viscosity of Phospholipid Monolayers, Physics of Fluids25, 032107-1-10 (2013).
Posada, D., Tessier, P.M., and Hirsa, A.H., Removal versus Fragmentation of Amyloid-Forming Precursors via Membrane Filtration, Biotechnology and Bioengineering109 (3), 840-845 (2012).
Olles, J.D., Vogel, M.J., Malouin, B.A., and Hirsa, A.H., Optical Performance of an Oscillating, Pinned-contact Double Droplet Liquid Lens, Optics Express19 (20), 19399-19406 (2011).
Malouin, B.A., Vogel, M.J., Olles, J.D., Cheng, L., and Hirsa, A.H., Electromagnetic Liquid Pistons for Capillarity-Based Pumping, Lab on a Chip11 (3), 393-396 (2011). Note, this paper was featured on the cover of the issue (February 2011).
Heldt, C.L, Sorci, M., Posada, D., Hirsa, A., and Belfort, G., Detection and Reduction of Microaggregates in Insulin Preparations, Biotechnology and Bioengineering108, 237-241 (2011).
Malouin, B.A., Vogel, M.J., and Hirsa, A.H., Electromagnetic Control of Coupled Droplets, Applied Physics Letters96, 214104 (2010).
Malouin, B.A., Koratkar, N.A., Hirsa, A.H., and Wang, Z., Directed Rebounding of Droplets by Microscale Surface Roughness Gradients, Applied Physics Letters96, 234103 (2010).
Lopez, C. A. and Hirsa, A. H., Fast Focusing using a Pinned-Contact Oscillating Liquid Lens, Nature Photonics2(10), 610-613 (2008). Also on the cover of the October issue and an interview with the corresponding author (Hirsa) is featured on p. 638. Also featured in the News & Views section an editorial by C. A. Stan entitled "Liquid Optics: Oscillating lenses focus fast," pp. 595-596.) Sample Images:
Slater, D., Steen, P.H., Hirsa, A.H., and Lopez, C.A., Chaotic Motions of a Forced Drop-Droplet Oscillator, Physics of Fluids20,092107-1-8 (2008).
Azadani, A.N., Lopez, J.M., and Hirsa, A.H., "Coupling Between Protein-Laden Films and a Shearing Bulk Flow," Journal of Colloid and Interface Science322, 79-86 (2008).
Azadani, A.N., Lopez, J.M., and Hirsa, A.H., "Protein Crystallization at the Air/Water Interface Induced by Shearing Bulk Flow," Langmuir23 (10), 5227-5230 (2007).
Wang, Z., Lopez, C., Hirsa, A., and Koratkar, N., "Impact Dynamics and Rebound of Water Droplets on Superhydrophobic Carbon Nanotube Arrays," Applied Physics Letters91 (2), 023105-1-023105-3 (2007).
Gupta, A., Denver, H., Hirsa, A.H., Stenken, J., and Borca-Tasciuc, D.-A., "Localized, Low-Voltage Electroosmotic Pumping Across Nanoporous Membranes," Applied Physics Letters91, 094101 (2007).
Theisen, E.A., Vogel, M.J., Lopez, C.A., Hirsa, A.H., and Steen, P.H., "Capillary Dynamics of Coupled Spherical-Cap Droplets," Journal of Fluid Mechanics580, 495-505 (2007).
Hirsa, A.H., Lopez, J.M., Vogel, M.J., and Leung, J.J.F., "Effects of Shearing Flow with Inertia on Monolayer Mesoscale Structure," Langmuir22 (23), 9483-9486 (2006).
Lopez, C.A., Lee, C.-C., and Hirsa, A.H., "Electrochemically Activated Adaptive Liquid Lens," Applied Physics Letters87 (13), 134102-1-134102-3 (2005)
Hirsa, A.H., Lopez, C.A., Laytin, M.A., Vogel, J.M., and Steen, P.H., "Low-Dissipation Capillary Switches at Small Scales," Applied Physics Letters86 (1), 014106-1 - 014106-3 (2005).
Leung, J.J.F., Hirsa, A.H., Blackburn, H.M., Marques, F., and Lopez, J.M., "Three-Dimensional Modes in a Periodically Driven Elongated Cavity," Physical Review E71 (2), 026305-1 - 026305-7 (2005).
Lopez, J.M., Vogel, M.J., and Hirsa, A.H., "Influence of Co-Existing Phases on the Surface Dilatational Viscosity of Langmuir Monolayers," Physical Review E70 (5), 056308-1 - 056308-5 (2004).
Vogel, M.J., Miraghaie, R., Lopez, J.M., and Hirsa, A.H., "Flow-Induced Patterning of Langmuir Monolayers, Langmuir20, 5651-5654 (2004).
Lopez, J.M., Marques, F., Hirsa, A.H., and Miraghaie, R., "Symmetry Breaking in Free-Surface Cylinder Flows," Journal of Fluid Mechanics502, 99-126 (2004).
Miraghaie, R., Lopez, J.M., and Hirsa, A.H., "Flow Induced Patterning at the Air-Water Interface," Physics of Fluids15 (6), L45-L48 (2003).
Vogel, M.J., Hirsa, A.H., and Lopez, J.M., "Spatio-Temporal Dynamics of a Periodically Driven Cavity Flow," Journal of Fluid Mechanics478, 197-226 (2003).
Hirsa, A.H., Lopez, J.M., and Miraghaie, R., "Determination of Surface Shear Viscosity via Deep-Channel Flow with Inertia," Journal of Fluid Mechanics470, 135-149 (2002).
Vogel, M.J. and Hirsa, A.H., "Concentration Measurements Downstream of an Insoluble Monolayer Front," Journal of Fluid Mechanics472, 283-305 (2002).
Heidari, A.H., Braun, R.J., Hirsa, A.H., Snow, S.A., and Naire, S., "Hydrodynamics of Bounded Vertical Film with Nonlinear Surface Properties," Journal of Colloid and Interface Science253 (2), 295-307 (2002).
Hirsa, A.H., Lopez, J.M., and Miraghaie, R., " Symmetry Breaking to a Rotating Wave in a Lid-Driven Cylinder with a Free Surface: Experimental Observations," Physics of Fluids 14 (6), L29-L32 (2002).
Lopez, J.M., Miraghaie, R., and Hirsa, A.H., "Non-Newtonian Behavior of an Insoluble Monolayer: Effects of Inertia," Journal of Colloid and Interface Science248 (1), 103-110 (2002).
Hirsa, A., Lopez, J.M., and Miraghaie, R., "Measurement and Computation of Interfacial Hydrodynamic Coupling at Air/Water Interface with an Insoluble Monolayer," Journal of Fluid Mechanics443, 271-292 (2001).
Reed, B.L., Hirsa, A.H., and Steen, P.H., "Vorticity Transport in Solidification Boundary Layers," Journal of Fluid Mechanics426, 397-406 (2001).
Lopez, J.M. and Hirsa, A.H., "Oscillatory Driven Cavity with an Air/Water Interface and an Insoluble Monolayer: Surface Viscosity Effects," Journal of Colloid and Interface Science242 (1), 1-5 (2001).
Hirsa, A.H., Vogel, M.J., and Gayton, J.D., "Digital Particle Velocimetry Technique for Free-Surface Boundary Layer Measurements: Application to Vortex Pair Interactions," Experiments in Fluids31 (2) 127-139 (2001).
Vogel, M.J., Hirsa, A.H., Kelley, J.S, and Korenowski, G.M., "Simultaneous Measurement of Free-Surface -Velocity and Surfactant Concentration via a Common Laser Probe," Review of Scientific Instruments72 (2), 1502-1509 (2001).
Hirsa, A., Lopez, J.M., and Kim, S., "Evolution of an Initially Columnar Vortex Terminating Normal to a No-slip Wall," Experiments in Fluids29 (4), 309-321 (2000).
Lopez, J.M. and Hirsa, A., "Surfactant influenced Gas/Liquid Interfaces: Nonlinear Equation of State and Finite Surface Viscosities," Journal of Colloid and Interface Science229, 575-583 (2000).
Lopez, J.M. and Hirsa, A., "Direct Determination of the Dependence of the Surface Shear and Dilatational Viscosities on the Thermodynamic State of the Interface: Theoretical Foundations," Journal of Colloid and Interface Science206 (1), 231-239 (1998).
Hirsa, A., Korenowski, G.M., Logory, L.M., and Judd, C.D., "Velocity Field and Surfactant Concentration Measurement Techniques for Free-Surface Flows," Experiments in Fluids22 (3), 239-248 (1997).
Hirsa, A., Korenowski, G.M., Logory, L.M., and Judd, C.D., "Determination of Surface Viscosities by Surfactant Concentration and Velocity Field Measurements for an Insoluble Monolayer," Langmuir 13 (14), 3813-3822 (1997).
Logory, L.M., Hirsa, A., and Anthony, D.G., "Interaction of Wake Turbulence with a Free Surface," Physics of Fluids8 (3), 805-815 (1996).
Edwards, D.P., Hirsa, A., and Jensen, M.K., "Turbulent Flow in Internally Finned Tubes," Journal of Fluids Engineering118, 506-513 (1996).
Hirsa, A., Harper, J.E., and Kim S., "Columnar Vortex Generation and Interaction with a Clean or Contaminated Free Surface," Physics of Fluids7 (11), 2532-2534 (1995).
Hirsa, A. and Willmarth, W.W., "Measurement of Vortex Pair Interaction with a Clean or Contaminated Free Surface," Journal of Fluid Mechanics 259, 25-45 (1994).
Tryggvason, G., Abdollahi-Alibeik, J., Willmarth, W.W., and Hirsa, A., "Collision of a Vortex Pair with a Contaminated Free Surface," Physics of Fluids A 4 (6), 1215-1229 (1992).
Anthony, D.G., Hirsa, A., and Willmarth, W.W., "On the Interaction of a Submerged Turbulent Jet with a Clean or Contaminated Free Surface," Physics of Fluids A 3(2), 245-247 (1991).
Willmarth, W.W., Tryggvason, G., Hirsa, A., and Yu, D., "Vortex Pair Generation and Interaction with a Free Surface," Physics of Fluids A 1 (2), 170-172 (1989).
Bernal, L.P., Hirsa, A., Kwon, J.T., and Willmarth, W.W., "On the Interaction of Vortex Rings and Pairs with a Free Surface for Varying Amounts of Surface Active Agents," Physics of Fluids A 1 (12), 2001-2004 (1989).
Book Chapters
Korenowski, G.M., Van Wagenen, E., Kelley, J.S., and Hirsa, A.H., "Imaging Surfactant Concentration Gradients," in Ocean Films, edited by G.M. Korenowski, Springer Verlang (in press).
Judd, K.P., Rusak, Z. and Hirsa A., "Theoretical and Experimental Studies of Swirling Flows in Diverging Streamtubes," in Advances in Fluid Mechanics III, edited by M. Rahman and C.A. Brebbia, WIT Press, 491-502 (2000).
Hirsa, A., Korenowski, G.M., Logory, L.M., Judd, C.D., and Kim, S., "Surfactant Effects on Vortex Flows at a Free Surface and Relation to Interfacial Gas Transfer," in Air-Water Gas Transfer, edited by B. Jahne and E.C. Monahan, AEON Verlag Publishing, Heidelberg, Germany, 649-663 (1995).
Refereed Conference Volumes
Steen, P.H. and Hirsa, A.H., "Environmentally Benign Casting: Casting by Design," Proceedings, NSF Design, Service and Manufacturing Research Conference, San Juan, Porto Rico, January 7-10 (2001).
Lopez, J.M. and Hirsa, A., "Dynamics of Surfactant-Influenced Gas/Liquid Interfaces," Proceedings, Second International Conference on CFD in the Minerals and Process Industries, CSIRO, Melbourne, Australia; Dec. 6-8 (Published as a CD, 1999).
Jensen, M.K., Smith, R.N., Kaminski, D.A., and Hirsa, A., "Towards an Integrated Themo/Fluids Engineering Curriculum," Proceedings of the ASME Heat Transfer Division - 1998 Vol 3, ed. Nelson, R. A., et al.) , HTD-Vol. 361-3, ASME Publications, New York, NY, pp. 9-16 (1998).
Hirsa, A., Gayton, J.D., Korenowski, G.M., Lopez, J.M., and Chen, J., "Hydrodynamic Coupling of Surfactant-Influenced Gas/Liquid Interfaces," paper 97-2057, AIAA Fluid Dynamics Conference (1997).
Athans, R.E. and Hirsa, A., "A Photographic Study of a Small Flashing Jet," in Flow Visualization and Image Processing of Multiphase Systems, ed. Yang, W.-J., et al., HTD-Vol. 209, ASME Publications, New York, NY, pp. 201-206 (1995).
Hirsa, A., Logory, L.M., Korenowski, G.M., Judd, C.D., and Gaines Jr., G.L., "Velocity Field and Surfactant Concentration Measurement Techniques as Applied to the Interaction of a Vortex Pair with a Free Surface," in Laser Anemometry, ed. Huang, T.T., et al., HTD-Vol. 229, ASME Publications, New York, NY, pp. 123-129 (1995).
Locke, C.A., Hirsa, A., and Rubin, M.D., "Short-Wave Instability in a Laminar Vortex Pair," in Forum on Unsteady Flows, ed. Keith, W.L. & Wei, T., FED-Vol. 157, ASME Publications, New York, NY, pp. 73-81 (1993).
Edwards, D.P., Hirsa, A., and Jensen, M.K., "Turbulent Air Flow in Longitudinally Finned Tubes," in Heat Transfer in Turbulent Flows, ed. Amono, R.S., et al., HTD-Vol. 246, ASME Publications, New York, NY, pp. 9-16 (1993).
Edwards, D.P., Hirsa, A., and Jensen, M.K., "An Experimental Investigation of Flow in Longitudinally Finned Tubes," in Fundamentals of Forced Convection Heat Transfer, ed. Ebadian, M.A. & Oosthuizen, P.H., HTD-Vol. 210, ASME Publications, New York, NY, pp. 141-148 (1992).
Hirsa, A., Tryggvason G., Abdollahi-Alibeik, J., and Willmarth, W.W., "Measurement and Computations of Vortex Pair Interaction with a Clean or Contaminated Free Surface," in Proceedings, 18th Symposium of Naval Hydrodynamics, National Academic Press, Washington DC, pp. 521-531 (1990).
Abstracts Published
(2015-2018 to be added)
Raghunandan, A., Tilger, C., Hirsa, A., and Lopez, J. Coupling of the Interfacial and Bulk Flow in a Knife-Edge Surface Viscometer, Bulletin of the American Physical Society59 (20), 119 (2014).
McBride, S. Tilger, C., Sanford, S., Hirsa, A., Lopez, J. Self-Assembly of Protein Fibrils in Stable Circular Couette Flow, Bulletin of the American Physical Society, 59 (20), 363 (2014).
Hirsa, A., Young, J., Posada, D., and Lopez, J. Shear-Induced Morphology in Mixed Phospholipid Films, Bulletin of the American Physical Society, 59 (20), 395 (2014).
Posada D. and Hirsa A.H.,Amyloid Fibril Formation at a Uniformly Sheared Air/Water Interface, Bulletin of the American Physical Society58, 361-362 (2013).
Tilger, C.F., Olles J.D., and Hirsa, A.H., Experiments on the Harmonic Response of Coupled Droplets to Pressure Forcing, Bulletin of the American Physical Society58, 428 (2013).
Young J.E., Posada D., and Hirsa, A.H., Lower Limit of Shear to Induce 2-D Protein Crystals, Bulletin of the American Physical Society58, 232 (2013).
Young, J., Posada, D., Hirsa, A., and Lopez, J., Flow Induced Protein Crystallization: Macroscopic Effects on 2D Crystals, Bulletin of the American Physical Society, 57 (17), 26 (2012).
Posada, D., Young, J., and Hirsa, A., Proteins at Flowing Interfaces: From Understanding Structure to Treating Disease, Bulletin of the American Physical Society, 57 (17), 171 (2012).
Sadoughi, A., Hirsa, A., and Lopez, J., DPPC: Is it Ever Newtonian? Bulletin of the American Physical Society, 57 (17), 172 (2012).
Olles, J., Hirsa, A., Sambath, K., and Basaran, O., Magnetic Actuation of Immersed Coupled Droplets: Experiments and Simulations, Bulletin of the American Physical Society, 57 (17), 308 (2012).
Malouin, B., Olles, J., Cheng, L, Hirsa, A., and Vogel, M., Electromagnetic Liquid Pistons for Capillarity-Based Pumping, Bull. Amer. Phys. Soc.56 (18), 261 (2011).
Olles, J. and Hirsa, A., Oscillatory Flow Measurements in the Vicinity of Pinned-Contact Capillary Surfaces, Bull. Amer. Phys. Soc.56 (18), 113 (2011).
Posada, D., Tessier, P., and Hirsa, A., Constrained Droplets for High Resolution Microscopy of Protein Fibrillization, Bull. Amer. Phys. Soc. 56 (18), 384 (2011).
Young, J., Posada, D., Hirsa, A., and Lopez, J., From Thermodynamics to Fluid Mechanics: Enhancing the 2-D Protein Crystallization Process, Bull. Amer. Phys. Soc. 56 (18), 384 (2011).
Sadoughi, A., Hirsa, A., and Lopez, J., Surface Shear Viscosity of a Lung Surfactant: Newtonian to Non-Newtonian Transition, Bull. Amer. Phys. Soc. 56 (18), 418 (2011).
Malouin, B., Posada, D., and Hirsa, A., Long Term Stability of Immiscible Ferrofluid/Water Interfaces, Bull. Amer. Phys. Soc.55 (16), 198 (2010).
Sadoughi, A., Hirsa, A., and Lopez, J., Newtonian to Non-Newtonian Flow Transition in Lung Surfactants, Bull. Amer. Phys. Soc.55 (16), 133 (2010).
Young, J., Posada, D., Hirsa, A., and Lopez, J., Effect of Reynolds Number on 2-D Protein Crystallization at the Air/Water Interface, Bull. Amer. Phys. Soc.55 (16), 322 (2010).
Olles, J., Hirsa, A., and Vogel, M., Optical Characteristics and Nonlinear Dynamics of a Pinned Contact Double Droplet System, Bull. Amer. Phys. Soc.55 (16), 288 (2010).
Posada, D. and Hirsa, A., Protein Amyloid Formation: Effects of Shear, Advection and Interfaces, Bull. Amer. Phys. Soc.55 (16), 321 (2010).
Hirsa, A., Malouin, B., Martinovic, I, Lopez, C., and Vogel, M., Dynamics of Pinned-Contact Oscillating Gas/Liquid Lenses, Bull. Amer. Phys. Soc.54 (19), 239 (2009).
Posada, D., Heldt, C., Sorci, M., Belfort, G., and Hirsa, A., Effects of Flow on Insulin Fibril Formation at an Air/Water Interface, Bull. Amer. Phys. Soc.54 (19), 335 (2009).
Malouin, B., Hirsa, A., and Vogel, J., Electromagnetically-Driven Capillary Switches and Oscillators, Bull. Amer. Phys. Soc.54 (19), 239 (2009).
Posada, D., Sorci, M., Belfort, G., and Hirsa, A., Effect of Bulk and Free Surface Shear Flows on Amyloid Fibril Formation, Bull. Amer. Phys. Soc.53 (15), 111 (2008).
Malouin, B., Dayal, R., Parsa, L., Hirsa, A., Electromagnetic Activation of Capillary Switches, Bull. Amer. Phys. Soc.53 (15), 156 (2008).
Hirsa, A., Martinovic, I, Lopez, C., Basaran, O., and Ramalingam, S., Coalescence and Breakup between a Capillary Switch and a Droplet, Bull. Amer. Phys. Soc.52 (17), 188 (2007).
Ramalingam, S., Basaran, O., Lopez, C., Martinovic, I., and Hirsa, A., Computational Analysis of Coalescence and Breakup Between a Capillary Switch and a pendant drop, Bull. Amer. Phys. Soc. 52 (17), 188 (2007).
Dexter, A., Azadani, A., Sorci, M., Belfort, G., and Hirsa, A., Flow Induced Protein Nucleation: Insulin Oligomerization under Shear, Bull. Amer. Phys. Soc.52 (17), 275-276 (2007).
Azadani, A., Lopez, J., and Hirsa, A., Coupling of a Protein-Laden Air/Water Interface to a Shearing Bulk Flow, Bull. Amer. Phys. Soc.52 (17), 274-275 (2007).
Leung, J., Hirsa, A., and Lopez, J., Effects of Length Scale on Determining Surface Dilatational Viscosity, Bull. Amer. Phys. Soc.52 (17), 215 (2007).
Roy, A., Borrell, M., Felts, J. Leal, G., and Hirsa, A., The Dueling Bubble Experiment, Bull. Amer. Phys. Soc.52 (17), 22 (2007).
Azadani, A. and Hirsa, A., Protein Crystallization Induced and Enhanced via Hydrodynamics: Force Crystallization, Bull. Amer. Phys. Soc.51 (9), 193 (2006).
Leung, J. and Hirsa, A., Mighty Morphing Monolayers: How Oscillatory Flow can Influence Phase Morphology, Bull. Amer. Phys. Soc. 51 (9), 110 (2006).
Steen, P., Theisen, E., Vogel, M., Lopez, C., and Hirsa, A., Capillary Oscillations of a Liquid Sphere Pinned on a Circle-of-Contact, Bull. Amer. Phys. Soc.51 (9), 111 (2006).
Gupta, A., Hirsa, A., and Borca-Tasciuc, D.-A., Electroosmotic Micro-Pump Array for Local Control of Droplets, Bull. Amer. Phys. Soc. 51 (9), 165 (2006).
Hirsa, A.H., Nejatbakhsh, A., Belfort, G., and Liu, H., Protein Crystallization on Liquid Surface: Forced versus Natural Crystallization, Bull. Amer. Phys. Soc.50 (9), 88 (2005).
Leung, J., Hirsa, A.H., Lopez, J.M., and Vogel, M.J., Monolayer Phase Coarsening using Oscillatory Flow, Bull. Amer. Phys. Soc.50 (9), 215 (2005).
Hwang, W., Ciuryla, M., Hirsa, A., and Borca-Tasciuc, T., "Micro-Scale Electrochemically Actuated Capillary Lens," Bull. Amer. Phys. Soc.49 (9), 86 (2004).
Lopez, C. and Hirsa, A., "Electrochemically Controlled Liquid Lens," Bull. Amer. Phys. Soc. 49 (9), 86 (2004)
Hirsa, A., Leung, J., Vogel, M., Lopez, J., "Effect of Flow with Inertia on Monolayer Mesoscale Structure," Bull. Amer. Phys. Soc.49 (9), 90 (2004).
Leung, J., Hirsa, A., Blackburn, H., Marques, F., Lopez, J., "Three-Dimensional Modes in a Periodically Driven Elongated Cavity," Bull. Amer. Phys. Soc.49 (9), 232 (2004).
Ciuryla, M., Chin, R., Hirsa, A., and Steen, P., "Making and Breaking Liquid Connections with a Capillary Switch," Bull. Amer. Phys. Soc.49 (9), 236 (2004).
Lopez, J., Vogel, M., and Hirsa, A., "Surface Dilatational Viscosity of Langmuir Monolayers," Bull. Amer. Phys. Soc. 48 (10), 45-46 (2003).
Laytin, M., Lee, C.-C., Wirecki, A., Meyerholz, J., Hirsa, A., and Steen, P., "Capillary Micro-Switch Activation," Bull. Amer. Phys. Soc.48 (10), 24 (2003).
Hirsa, A., Vogel, M., and Lopez, J., "Mesoscale and Macroscale Patterning of Langmuir Monolayers by Bulk Flow," Bull. Amer. Phys. Soc.48 (10), 245 (2003).
Leung, J., Hirsa, A., Lopez, J., and Blackburn, H., "Endwall Effects in Periodically Driven Cavity Flow," Bull. Amer. Phys. Soc.48 (10), 31 (2003).
Vogel, M.J., Steen, P.H., Bhandar, A.S., Hirsa, A.H., Cox, C.L., and Matalanis, C., "Bubbles and Beetles: Applications of Capillary Stability," Proceedings of the 1000 Islands Fluid Mechanics Meeting, Gannanoque, Ontario, Canada, May 9-11, 2003 (appeared in electronic form).
Hirsa, A., Miraghaie, R., Vogel, M., and Lopez, J., "Flow Induced Structuring on the Surface of Liquids: Shaping Monolayers via Bulk Flow Instabilities," Bull. Amer. Phys. Soc.47 (10), 101 (2002).
Miraghaie, R., Hirsa, A., and Lopez, J., "Symmetry Breaking to a Rotating Wave in a Lid-Driven Cylinder with a Free," Bull. Amer. Phys. Soc.47 (10), 101 (2002).
Vogel, M., Hirsa, A., Lopez, J., and Blackburn, H., "Spatio-Temporal Dynamics of a Periodically Driven Cavity Flow," Bull. Amer. Phys. Soc.47 (10), 68 (2002).
Steen, P, Matalanis, C., Hirsa, A., and Cox, C., "Capillary Micro-Switches," Bull. Amer. Phys. Soc.47 (10), 129-130 (2002).
Lopez, J.M., Hirsa, A.H., Miraghaie, R., and Marques, F., "Rotating Waves at the Air/Water Interface in a Swirling Cylinder Flow," Bull. Amer. Phys. Soc.47 (10), 179-180 (2002).
Hirsa, A.H., Lopez, J.M., and Vogel, M.J., "Oscillatory-Driven Cavity Flow for Determination of Surface Dilatational Viscosity," Bull. Amer. Phys. Soc.46 (10), 180 (2001).
Miraghaie, R., Hirsa, A.H., and Lopez, J.M., "Application of Deep-Channel Viscometer with Inertia for Measurement of Surface Shear Viscosity," Bull. Amer. Phys. Soc.46 (10), 183 (2001).
Howell, D.J., Hirsa, A.H., Heidari, A.H., Braun, R.J., and Snow, S.A., "Measurement and Computation of Vertical Bounded Film Drainage with an Insoluble Monolayer," Bull. Amer. Phys. Soc.46 (10), 176 (2001).
Vogel, J.M., Hirsa, A.H., and Lopez, J.M., "Measurements of a Free-Surface Oscillatory-Driven Cavity Flow," Bull. Amer. Phys. Soc.46 (10), 181 (2001).
Vogel, M.J. and Hirsa, A.H., "Concentration Distribution Downstream of a Reynolds Ridge," Bull. Amer. Phys. Soc.45 (9), 51-52 (2000).
Miraghaie, R., Hirsa, A.H., and Lopez, J.M, "Measurements of Free-Surface Velocity in a Swirling Flow in the Presence of Insoluble Monolayers," Bull. Amer. Phys. Soc.45 (9), 52 (2000).
Hirsa, A.H., Lopez, J.M., and Miraghaie, R., "Navier-Stokes Computations of a Swirling Free-Surface Flow in the Presence of Insoluble Surfactants," Bull. Amer. Phys. Soc.45 (9), 52 (2000).
Lopez, J.M. and Hirsa, A., "Computational Modeling of Interfacial Hydrodynamics incorporating Nonlinear Equation of State and Finite Surface Viscosities," Bull. Amer. Phys. Soc.44 (8), 45 (1999).
Hirsa, A., Lopez, J.M., Joshi, A.A., and Miraghaie, R., "Measurements of the Velocity Field at an Air/Water Interface with an Insoluble Surfactant," Bull. Amer. Phys. Soc.44 (8), 45 (1999).
Vogel, M.J., Hirsa, A., Kelley, J.S., and Korenowski, G.M., "Velocity Field Measurements Downstream of a Reynolds Ridge," Bull. Amer. Phys. Soc.44 (8), 31-32 (1999).
Kelley, J.S., Korenowski, G.M., Vogel, M.J., and Hirsa, A., "Surfactant Distribution Measurements Downstream of a Reynolds Ridge," Bull. Amer. Phys. Soc.44 (8), 32 (1999).
Hirsa, A., Korenowski, G.M., Ringuette, M.R., Joshi, A., and Lopez, J.M., "Measurements in a High Reynolds Number Deep-Channel Viscometer," Bull. Amer. Phys. Soc.43 (9), 2077 (1998).
Judd, K.P., Rusak, Z., and Hirsa, A., "Experimental and Theoretical Studies of Vortex Breakdown Over a Delta Wing," Bull. Amer. Phys. Soc.43 (9), 2011 (1998).
Lopez, J.M. and Hirsa, A., "Direct Determination of Surface Shear and Dilatational Viscosities," Bull. Amer. Phys. Soc.43 (9), 2076-2077 (1998).
Hirsa, A., Lopez, J.M., and Mortzheim, J.P., "Direct Determination of Surface Dilatational Viscosity," Bull. Amer. Phys. Soc.42 (11), 2176 (1997).
Korenowski, G.M., Hirsa, A., Van Wagenen, E., and Jin, H.J., "Optical Technique for the Areal Measurement of Surfactant Concentration as Applied to a Monolayer Downstream of a Reynolds Ridge," Bull. Amer. Phys. Soc.42 (11), 2224 (1997).
Mortzheim, J.P., Gayton, J.D., and Hirsa, A., "Free Surface Velocity and Elevation Measurement Techniques as Applied to the Interaction of a Vortex Pair with a Contaminated Interface," Bull. Amer. Phys. Soc.42 (11), 2163 (1997).
Gayton, J.D., Hirsa, A., Korenowski, G.M., and Logory, L.M., "Determination of Surface Viscosities by Surfactant Concentration and Velocity Field Measurements," Bull. Amer. Phys. Soc.41 (9), 1746 (1996).
Hirsa, A., Lopez, J.M, and Kim, S., "Interaction of a Columnar Vortex with a Solid Wall," Bull. Amer. Phys. Soc.41 (9), 1796 (1996).
Hirsa, A., Kim, S., and Harper, J.E., "Interaction of a Columnar Vortex with a Free Surface," Bull. Amer. Phys. Soc.39 (9), 1905 (1994).
Korenowski, G.M., Hirsa, A., Gaines Jr., G.L., Logory, L.M., and Judd, C.D., "Velocity Field and Concentration Measurements During the Interaction of a Vortex Pair with a Free Surface," Bull. Amer. Phys. Soc.39 (9), 1905 (1994).
Athans, R.E., and Hirsa, A., "Rapid Expansion of Near-Critical Liquid Iso-Octane Through a Converging and a Converging-Diverging Nozzle," Bull. Amer. Phys. Soc.39 (9), 942 (1994).
Hirsa, A., and Logory, L.M., "Velocity Field in the Wake of a Surface-Piercing Flat Plate," Bull. Amer. Phys. Soc.38 (12), 2283 (1993).
Anthony, D.G., Hirsa, A., and Logory, L.M., "Structure of Turbulence in the Wake of a Surface-piercing Flat Plate," Bull. Amer. Phys. Soc.38 (12), 2283 (1993).
Gulen, S.C., Hirsa, A., Athans, R., Hynes, J., and Suchman, J., "Rapid Depressurization of Liquid Iso-Octane in a Converging Nozzle," Bull. Amer. Phys. Soc.38 (12), 2212 (1993).
Logory, L.M., Hirsa, A., and Muschlitz, G., "Interaction of Wake Turbulence with a Free Surface," Bull. Amer. Phys. Soc.37 (8), 1753 (1992).
Locke, C.A., Hirsa, A., Rubin, M.D., and Fenell, D., "Short-Wave Instability in a Laminar Vortex Pair," Bull. Amer. Phys. Soc.37 (8), 1803 (1992).
Anthony, D.G., and Hirsa, A., "Effects of Swirl on a Turbulent Jet Interacting with a Free Surface," Bull. Amer. Phys. Soc.37 (8), 1752 (1992).
Hirsa, A. and Willmarth, W.W., "Effect of Contaminants on the Interaction of a Vortex Pair with a Free Surface," Bull. Amer. Phys. Soc.35 (10), 2267 (1990).
Willmarth, W.W., Anthony, D., and Hirsa, A., "Flow Field of a Submerged Turbulent Jet Interacting with a Clean Free Surface," Bull. Amer. Phys. Soc.35 (10), 2322 (1990).Hirsa, A. and Willmarth, W.W., "2-D & 3-D Aspects of Vortex Pair Interaction with a Free Surface," Bull. Amer. Phys. Soc. ,34 (10), 2259 (1989).
Hirsa, A., Tryggvason, G., Willmarth, W.W., and Yu, D., "Interaction of a Vortex Pair with a Free Surface," Bull. Amer. Phys. Soc. ,33 (10), 2278 (1988).
Willmarth, W.W. and Hirsa, A., "Free Surface Motion Produced by Trailing Vortices," Bull. Amer. Phys. Soc. ,33 (10), 2278 (1988).