MATHEMATICAL MODELING OF ACTIVE THERMIONIC HEAT PROTECTION IN A HIGH ENTHALPY FLOW PAST A SHELL

A mathematical model of the process of unsteady heat transfer of a thermionic heat-protection system in convective heating has been formulated and investigated. The effects of evaporation (emission) of electrons from the surface of the emitter on the drop in the temperature of a composite thermionic heat-protection shell have been demonstrated. The effects of some types of heat-transfer agents in a composite shell on the heat-transfer regimes in a body have been investigated. Qualitative agreement of the computation results with the existing data has been achieved.
   
Author:  V. P. Zimin, K. N. Efi mov, V. A. Ovchinnikov, and A. S. Yakimov
Keywords:  thermionic converter, emitter, collector, heat transfer, heat protection
Page:  497