Mechanics from St Petersburg University have developed a mathematical model that takes into account non-equilibrium processes occurring at high velocities in the gas flow and on the surface. This model can be used for detailed modeling of the interaction of gas with the surface of a spacecraft, which is extremely important when designing its thermal protection. The paper is published in the journal Physics of Fluids.
Mechanics from St Petersburg University have developed a mathematical model that takes into account non-equilibrium processes occurring at high velocities in the gas flow and on the surface. This model can be used for detailed modeling of the interaction of gas with the surface of a spacecraft, which is extremely important when designing its thermal protection.
"This made it possible to describe in detail the dynamics and kinetics of a rarefied non-equilibrium gas near the surface of solids. The main feature of the obtained boundary conditions is the ability to correctly interpret the effects of the physical interaction of a gas with the surface of a body and take into account the influence of interfacial heterogeneous chemical reactions," said Elena Kustova, Head of the Department of Hydroaeromechanics at St Petersburg University.
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