Onkar Sahni

Mechanical, Aerospace and Nuclear Engineering

Research

Other Focus Areas

Fluid Mechanics, Computational Fluid Dynamics, Turbulence Simulations, Computational Mechanics, High-Performance and Parallel Computing

Publications

The following is a selection of recent publications in Scopus. Onkar Sahni has 95 indexed publications in the subjects of Engineering, Computer Science, Mathematics.

A GPU-Accelerated 3D Unstructured Mesh Based Particle Tracking Code for Multi-Species Impurity Transport Simulation in Fusion Tokamaks
Dhyanjyoti D. Nath, Timothy R. Younkin, Jerome Guterl, Mark S. Shephard, Onkar Sahni
Contributions to Plasma Physics
, 2025
.
In-memory Parallel Anisotropic Mesh Adaptation for Unsteady Hypersonic Problems
Onkar Sahni, Cameron S. Brown, Mikiel Gica, Sharanjeet Kaur, Giovanni Salazar, Patrick Keistler
AIAA Aviation Forum and ASCEND, 2024
, 2024
.
Unstructured mesh tools for magnetically confined fusion system simulations
Mark S. Shephard, Jacob Merson, Onkar Sahni, Angel E. Castillo, Aditya Y. Joshi, Dhyanjyoti D. Nath, Usman Riaz, E. Seegyoung Seol, Cameron W. Smith, Chonglin Zhang, Mark W. Beall, Ottmar Klaas, Rocco Nastasia, Saurabh Tendulkar
Engineering with Computers
, 40
, 2024
, pp.3319-3336
.
A 3D unstructured mesh based particle tracking code for impurity transport simulation in fusion tokamaks
Dhyanjyoti D. Nath, Vignesh V. Srinivasaragavan, Timothy R. Younkin, Gerrett Diamond, Cameron W. Smith, Alyssa Hayes, Mark S. Shephard, Onkar Sahni
Computer Physics Communications
, 292
, 2023
.
A dynamic variational multiscale method on unstructured meshes for stationary transport problems
Zelu Xu, Onkar Sahni
International Journal for Numerical Methods in Fluids
, 95
, 2023
, pp.1117-1147
.
hPIC2: A hardware-accelerated, hybrid particle-in-cell code for dynamic plasma-material interactions
L. T. Meredith, M. Rezazadeh, M. F. Huq, J. Drobny, V. V. Srinivasaragavan, O. Sahni, D. Curreli
Computer Physics Communications
, 283
, 2023
.
A Computational Examination of Side-by-Side Rotors in Ground Effect
Richard Healy, Joseph McCauley, Farhan Gandhi, Onkar Sahni
Journal of the American Helicopter Society
, 68
, 2023
.
A parallel interface tracking approach for evolving geometry problems
Fan Yang, Anirban Chandra, Yu Zhang, Saurabh Tendulkar, Rocco Nastasia, Assad A. Oberai, Mark S. Shephard, Onkar Sahni
Engineering with Computers
, 38
, 2022
, pp.4289-4305
.
Parametric Investigation of Flow over a Rotor-Blown Wing using High-fidelity Simulations
Ullhas Udaya Hebbar, Farhan Gandhi, Onkar Sahni
78th Vertical Flight Society Annual Forum and Technology Display, FORUM 2022
, 2022
.
A Comparison of High-Fidelity Simulation Approaches for Interactional Aerodynamics of Multirotor Systems in Forward Flight
Abhishek Chopra, Richard Healy, Farhan Gandhi, Onkar Sahni
78th Vertical Flight Society Annual Forum and Technology Display, FORUM 2022
, 2022
.
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