Three-dimensional computational model of nonequilibrium aerophysics of mars re-entry vehicles
DOI:
https://doi.org/10.7242/1999-6691/2010.3.4.39Keywords:
radiation gasdynamics, nonequilibrium physical-chemical processes, aerophysics of space vehicles, computational mechanics of gases and plasmaAbstract
A three-dimensional computational model of nonequilibrium aerothermodynamics of Mars landing vehicles is presented. The model is based on the system of Navier-Stokes equations, energy conservation equation in the form of the Fourier-Kirchhoff equation for translational temperature, vibrational kinetics equations for six vibrational modes of N2, O2, CO2, CO molecules and multi-group spectral radiation heat transfer equation. Numerical simulation results are presented for two- and three-dimensional cases of non-equilibrium flows for EXOMARS space vehicle, intended for Martian mission. Numerical simulation codes NERAT-2D and NERAT-3D, developed at the IPMech RAS, with structured multi-block curvilinear grids were used for prediction of the fields of gasdynamic functions, as well as convective and radiation heating of the spacecraft surface.
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