Three-dimensional computer model of nonequilibrium aerophysics of the spacecraft entering in the Martian atmosphere |
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| Authors: | S T Surzhikov |
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| Institution: | (1) LAEPT, Blaise Pascal University, Auvergne University, Clermont University, 24 avenue des Landais, 63177 Aubi?re Cedex, France;(2) SPCTS, Limoges University, CNRS, 123 avenue Albert Thomas, 87060 Limoges Cedex, France;(3) IMT, Paul Sabatier Toulouse University, CNRS, 118 route de Narbonne, 31062 Toulouse Cedex 09, France;(4) IJLRA, Pierre et Marie Curie University, 4 place Jussieu, Tour 55-65, 75252 Paris Cedex 05, France;(5) ICARE, Orl?ans University, CNRS, 1C avenue de la Recherche Scientifique, 45071 Orl?ans Cedex 02, France;(6) LM, Blaise Pascal University, CNRS, Clermont University, 24 avenue des Landais, 63177 Aubi?re Cedex, France |
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| Abstract: | A three-dimensional computer model of nonequilibrium aerophysics of the spacecraft entering in the Martian atmosphere and
landing on the planet surface is presented. The model is based on the system of Navier-Stokes equations, the energy conservation
equation in the form of the Fourier-Kirchhoff equation for the translational temperature, the system of equations of vibrational
kinetics for six vibrational modes of N2, O2, CO2 and CO molecules, and the equation of selective thermal radiation transfer in the multigroup spectral approximation. The
results of two-dimensional and threedimensional calculations of the nonequilibrium flowfield and the convective and radiative
heating of the EXOMARS spacecraft surface are presented. The calculations are performed on regular multiblock curvilinear
grids using the NERAT-2D and NERAT-3D computer codes developed in the Institute for Problems in Mechanics of the Russian Academy
of Sciences. |
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