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Thermophysics and Aeromechanics

2022 year, number 1

Mathematical modeling of a thermionic thermal protection system for high-enthalpy flow around a spherically blunted cone

K.N. Efimov, E.L. Loboda, V.A. Ovchinnikov, A.S. Yakimov
Tomsk State University, Tomsk, Russia
Keywords: conjugate heat transfer, thermionic thermal protection system, emitter, collector, cooler


A mathematical model of the process of the unsteady conjugate heat transfer of a thermionic thermal protection system in a supersonic flow around a composite shell is formulated and investigated. Estimates of the effect of evaporation (emission) of electrons from the emitter surface on the reduction of temperature of the composite shell of the protection system were obtained. The effect of different angles of attack on the modes of heat transfer in a multi-element thermionic thermal protection system was examined. Qualitative agreement of calculation results with known data is obtained.