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Journal of Applied Mechanics and Technical Physics

2018 year, number 2

Investigations of Heat and Mass Transfer for Thermal Protection Materials in a Long Flight

V. I. Zinchenko, V. D. Goldin, V. G. Zverev
Institute of Applied Mathematics and Mechanics, Tomsk, 634050, Russia
Keywords: гиперзвуковая скорость, аэродинамический нагрев, тепловая защита, сопряженный тепломассообмен, теплозащитные материалы, hypersonic velocity, aerodynamic heating, thermal protection, coupled heat and mass transfer, thermal protection materials

Abstract

The problem of unsteady coupled heat and mass transfer in the course of motion of a spherically blunted conical body fabricated with the use of thermal protection materials is considered. Numerical integration is applied to study the characteristics of heat and mass transfer at constant stagnation parameters (Mach number 6, altitude 15 km, and flight time 600 s), which impose severe constraints on the choice of materials for thermal protection. It is demonstrated that the use of advanced ceramic materials ensures an admissible temperature regime and maintaining the initial geometry of the body, including its motion at an angle of attack.