Numerical Simulation of Active Thermionic Heat Protection in High-Entalpy Flow around a Multilayered Shell

V. P. Zimin; K. N. Efimov; V. A. Ovchinnikov; A. S. Yakimov

doi:10.1134/S0018151X1906018X

Numerical Simulation of Active Thermionic Heat Protection in High-Entalpy Flow around a Multilayered Shell

Authors: Zimin V.P.¹, Efimov K.N.², Ovchinnikov V.A.², Yakimov A.S.²
Affiliations:
1. Tomsk Polytechnic University
2. Tomsk State University
Issue: Vol 57, No 6 (2019)
Pages: 889-898
Section: Heat and Mass Transfer and Physical Gasdynamics
URL: https://journals.rcsi.science/0018-151X/article/view/158128
DOI: https://doi.org/10.1134/S0018151X1906018X
ID: 158128

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Abstract

A mathematical model of the process of unsteady heat transfer of a thermionic thermal protection system during convective heating is presented. The effect of the evaporation (emission) of electrons from the surface of the emitter on a decrease in its temperature is studied. It is shown that the some coolants in the composite shell affects the heat-transfer modes of active thermal protection. The calculation results qualitatively agree with the known data.