Numerical Simulation of High-Enthalpy Flows at Thermochemical Equilibrium

2020 ◽  
Vol 34 (2) ◽  
pp. 255-264
Author(s):  
A. Diwakar ◽  
V. K. V. Ramasahayam ◽  
K. Bodi
Keyword(s):  
Numerical Simulation ◽  
High Enthalpy ◽  
Thermochemical Equilibrium

Numerical Simulation of High-Enthalpy Hollow-Cylinder/Flare Flows

AIAA Journal ◽  
2018 ◽  
Vol 56 (8) ◽  
pp. 3337-3341 ◽  
Author(s):  
Jiaao Hao ◽  
Jingying Wang ◽  
Chunhian Lee
Keyword(s):  
Numerical Simulation ◽  
Hollow Cylinder ◽  
High Enthalpy

RELAXATION PROCESSES BEHIND THE SHOCK WAVE IN AIR

2020 ◽  
Author(s):  
A. I. Bryzgalov ◽  
Keyword(s):  
Numerical Simulation ◽  
Shock Wave ◽  
High Temperature ◽  
Space Missions ◽  
Relaxation Processes ◽  
Flow Conditions ◽  
Chemical Nonequilibrium ◽  
Atmospheric Entry ◽  
Qualitative And Quantitative ◽  
High Enthalpy

This work is relevant to numerical simulation of atmospheric entry phase of space missions and in high enthalpy facilities producting flow conditions close to flight conditions. Such flows are featured by low pressure and high temperature, which induces thermal and chemical nonequilibrium, while calculations with equilibrium assumption give both qualitative and quantitative errors.

Study of Thermo-Chemical Non-Equilibrium Phenomena behind Strong Shock Waves at Atmospheric Reentry

2011 ◽  
Vol 274 ◽  
pp. 13-22 ◽  
Author(s):  
R. Allouche ◽  
R. Haoui ◽  
J.D. Parisse ◽  
R. Renane
Keyword(s):  
Numerical Simulation ◽  
Equilibrium State ◽  
Chemical Species ◽  
Strong Shock ◽  
One Dimensional ◽  
Atmospheric Reentry ◽  
High Enthalpy ◽  
Finite Differences Method ◽  
Strong Shock Waves ◽  
Non Equilibrium

This work consists of the numerical simulation of high enthalpy flows. The numerical model is governed by Euler equations and supplemented by the equations of the chemical kinetics modeling the phenomena of the chemical air components in a non-equilibrium state. The finite differences method is used for numerical simulations, the phenomena of a hypersonic flow one-dimensional reactive, non-viscous, chemical non-equilibrium is developed taking into account the physicochemical phenomena like the vibration, the dissociation of the diatomic molecules, the ionization of molecules and the formed atoms of chemical species to higher temperatures which appear behind a strong shock detached and evolve according to time in a relaxation range until to reach the equilibrium state. We are interesting in particular on the temperature effect in ionization of the atoms and the molecules.

Numerical simulation of a non-charring ablator in high enthalpy flows by means of a unified flow-material solver

2017 ◽  
Author(s):  
Pierre Schrooyen ◽  
Joffrey Coheur ◽  
Alessandro Turchi ◽  
Koen Hillewaert ◽  
Philippe Chatelain ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Enthalpy

Numerical simulation of nonequilibrium flow in high-enthalpy shock tunnel

Energy ◽  
2005 ◽  
Vol 30 (2-4) ◽  
pp. 165-179 ◽  
Author(s):  
M. Kaneko ◽  
I. Men’shov ◽  
Y. Nakamura
Keyword(s):  
Numerical Simulation ◽  
Shock Tunnel ◽  
Nonequilibrium Flow ◽  
High Enthalpy ◽  
High Enthalpy Shock Tunnel

Numerical Simulation of High-Enthalpy Double-Cone Flows

AIAA Journal ◽  
2017 ◽  
Vol 55 (7) ◽  
pp. 2471-2475 ◽  
Author(s):  
Jiaao Hao ◽  
Jingying Wang ◽  
Chunhian Lee
Keyword(s):  
Numerical Simulation ◽  
Double Cone ◽  
High Enthalpy
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