A computational strategy for nonlinear coupled constitutive relations of rarefied nonequilibrium flows on unstructured grids

S Zeng, Z He, W Zhao, W Chen - Aerospace Science and Technology, 2023 - Elsevier
Abstract The Navier-Stokes-Fourier (NSF) equations are no longer valid in high-Knudsen
and high-Mach flows, where the local thermodynamically equilibrium assumption fails, while …

A three-dimensional modal discontinuous Galerkin method for the second-order Boltzmann-Curtiss-based constitutive model of rarefied and microscale gas flows

S Singh, A Karchani, T Chourushi, RS Myong - Journal of Computational …, 2022 - Elsevier
A three-dimensional mixed modal discontinuous Galerkin (DG) method based on tetrahedral
meshes was developed for simulating all flow regimes from subsonic to hypersonic rarefied …

[HTML][HTML] Numerical simulation of hypersonic thermochemical nonequilibrium flows using nonlinear coupled constitutive relations

Z Shuhua, Y Zhenyu, Z Wenwen, C Weifang - Chinese Journal of …, 2023 - Elsevier
To predict aeroheating performance of hypersonic vehicles accurately in thermochemical
nonequilibrium flows accompanied by rarefaction effect, a Nonlinear Coupled Constitutive …

Numerical simulation of lateral jet interaction with rarefied hypersonic flow over a two-dimensional blunt body

G Zhao, C Zhong, S Liu, J Chen, C Zhuo - Physics of Fluids, 2023 - pubs.aip.org
Reaction Control System (RCS) is a direct force control system that successfully adjusts a
craft's attitude or orbit using the reaction force created by jet flow. RCS is frequently …

Computational study of lateral jet interaction in hypersonic thermochemical non-equilibrium flows using nonlinear coupled constitutive relations

S Zeng, J Yang, W Zhao, Y Huang, Z Jiang, W Chen - Physics of Fluids, 2023 - pubs.aip.org
The present study reports the numerical analyses of lateral jet interaction around a Terminal
High Altitude Area Defense-type (THAAD-type) model in hypersonic rarefied flows, with the …

A second-order slip/jump boundary condition modified by nonlinear Rayleigh–Onsager dissipation factor

S Zeng, W Zhao, Z Jiang, W Chen - Physics of Fluids, 2023 - pubs.aip.org
A newly heuristic form of second-order slip/jump boundary conditions (BCs) for the Navier–
Stokes–Fourier (NSF) equations is proposed from the viewpoint of generalized …

Numerical assessment of double lateral jets interaction in rarefied nonequilibrium crossflows via nonlinear coupled constitutive relations

J Yang, S Zeng, W Zhao, Z Jiang, W Chen… - Aerospace Science and …, 2025 - Elsevier
Compared to traditional aerodynamic control surfaces, the reaction control system (RCS)
offers enhanced control maneuverability for hypersonic vehicles at high flight altitudes with a …

Gas-particle flows in a microscale shock tube and collection efficiency in the jet impingement on a permeable surface

O Ejtehadi, TK Mankodi, I Sohn, BJ Kim, RS Myong - Physics of Fluids, 2023 - pubs.aip.org
We investigate the flow physics of non-equilibrium gases in interaction with solid particles in
a microscale shock tube and the collection efficiency in the jet impingement on a permeable …

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 …

Eu's generalized hydrodynamics with its derived constitutive model: Comparison to Grad's method and linear stability analysis

Z Jiang, W Zhao, W Chen, Z Yuan - Physics of Fluids, 2021 - pubs.aip.org
Recently, the generalized hydrodynamic equations (GHE) and nonlinear coupled
constitutive relation (NCCR) model have been successfully utilized for the practical …