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

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...

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Bibliographic Details
Published in:High temperature 2019-11, Vol.57 (6), p.889-898
Main Authors: Zimin, V. P., Efimov, K. N., Ovchinnikov, V. A., Yakimov, A. S.
Format: Article
Language:English
Subjects:
Atoms and Molecules in Strong Fields
Classical and Continuum Physics
Composite structures
Computer simulation
Coolants
Emitters
Emitters (electron)
Heat and Mass Transfer and Physical Gasdynamics
Industrial Chemistry/Chemical Engineering
Laser Matter Interaction
Materials Science
Mathematical models
Physical Chemistry
Physics
Physics and Astronomy
Shells (structural forms)
Thermal protection
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Summary: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.
ISSN:0018-151X
1608-3156
DOI:10.1134/S0018151X1906018X