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Numerical Modeling of Shock-Wave Structures in Supersonic Flows of Non-Equilibrium Vibrationally Excited Gas
Khrapov S. S.
1, Khoperskov A. V.
1, Khrapov N. S.
1
1Volgograd State University, Volgograd, Russia
Email: khrapov@volsu.ru, khoperskov@volsu.ru, pmfb-231_953278@volsu.ru
The dynamics of two-dimensional flows of nonequilibrium gas is considered taking into account relaxation processes, viscosity and thermal conductivity. Based on the numerical gas-dynamic method MUSCL, a parallel computing algorithm is implemented, which allows studying nonlinear wave structures arising in a non-equilibrium medium due to the development of gas-dynamic instabilities with high spatial resolution. A significant increase (by 100-1000 times) in computing performance is shown when using parallel versions of the computing code for GPUs. Numerical modeling of shock-wave structures in a flat two-dimensional channel with injection of a supersonic jet of non-equilibrium gas is carried out. Keywords: non-equilibrium gas, supersonic jets, shock waves, numerical methods, parallel computing on GPUs.
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