Thermal and flow characteristics of nonequilibrium monatomic, diatomic, and polyatomic gases in cylindrical Couette flow based on second-order non-Navier–Fourier …

T Chourushi, A Rahimi, S Singh, O Ejtehadi… - International Journal of …, 2022 - Elsevier
The thermal and flow characteristics of nonequilibrium monatomic, diatomic, and polyatomic
gases in cylindrical Couette flow are investigated using first-and second-order Boltzmann …

[HTML][HTML] Investigation of shock and a dust cloud interaction in Eulerian framework using a newly developed OpenFOAM solver

O Ejtehadi, E Mahravan, I Sohn - International Journal of Multiphase Flow, 2021 - Elsevier
The current study documents the development of a new multiphase solver for the simulation
of dilute dusty gas flows in the OpenFOAM suite. Even though various solvers for simulation …

Full continuum approach for simulating plume-surface interaction in planetary landings

O Ejtehadi, RS Myong, I Sohn, BJ Kim - Physics of Fluids, 2023 - pubs.aip.org
A high-fidelity computational framework for predicting the interaction of a rocket plume with a
dust blanket in an almost vacuum ambient that represents the descent/ascend phase of …

Numerical analysis of nucleate boiling in rolling rod bundle with tilted axis using two-fluid modeling approach

O Ejtehadi, A Sadeghi, BJ Kim - International Journal of Heat and Mass …, 2023 - Elsevier
In this study, an Eulerian-Eulerian two-fluid approach was applied to simulate nucleate
boiling in a vertical rolling 2× 2 rod bundle with a tilted axis. For this purpose, the standard …

Vortexlet formation in Schardin's problem

LN Kofoglu, GG Spinelli, B Celik - Physics of Fluids, 2022 - pubs.aip.org
The present study focuses on the shock diffraction problem over a triangle wedge for Mach
numbers of M= 1.3, 1.5, 1.7⁠, and 2.0 by using a two-dimensional, high-order, in-house …

Computational study of hypersonic rarefied gas flow over re-entry vehicles using the second-order Boltzmann-Curtiss constitutive model

T Chourushi, S Singh, VA Sreekala… - International Journal of …, 2021 - Taylor & Francis
The aerothermodynamics of re-entry vehicles vary significantly upon re-entry, descent, and
landing, because of the drastic changes in atmospheric density and velocity. In highly …

[HTML][HTML] The spatio-temporal evolution of shock wave pressure induced by laser: Effects of laser parameters and confinement layer

Y Ge, Z Yu, C Liu, Z Tong, Y Ye, H Liu, H Yang, W Zhou… - Physics Letters A, 2024 - Elsevier
The spatio-temporal distribution of the shock wave pressure on the surface of the target is
the key to the performance of laser shock processing (LSP), which is mainly determined by …

Eulerian-Eulerian simulation of dusty gas flows past a prism from subsonic to supersonic regimes using a modal discontinuous Galerkin method

O Ejtehadi, RS Myong - Computers & Fluids, 2021 - Elsevier
The present work investigates the bubble formation and vortex shedding phenomena in the
viscous flow of a compressible gas seeded with dust particles. A new modal discontinuous …

Shock wave interaction with a naturally generated vortex ring

SA Ahire, A Chatterjee - Physics of Fluids, 2024 - pubs.aip.org
The vortex ring is usually analytically modeled in computational studies involving vortex ring
and shock wave interaction. However, incompressibility assumptions of the isolated vortex …

[PDF][PDF] ISTANBUL TECHNICAL UNIVERSITY 击GRADUATE SCHOOL

INSFVIAA HIGH, OFV SOLVER - 2023 - researchgate.net
ISTANBUL TECHNICAL UNIVERSITY 击GRADUATE SCHOOL INVESTIGATION OF
SHOCK-VORTEX INTERACTIONS IN SUPERSONIC FLOWS VIA A HIGH-ORDE Page 1 …