Transient behavior of an active thermal protection system
Abstract
The transient behavior of an active thermal protection system consisting of a semi-infinite layer of a porous medium with gas injection is considered. During the early stages of heating, thermal penetration depth, surface temperature and surface heat flux do not depend on the gas injection velocity. As the heating time increases, the thermal penetration depth of conventional insulation without gas injection never reaches a constant value. Transient solid temperature distributions in the layer for two different surface boundary conditions are almost identical, except in the vicinity of the front surface.
- Publication:
-
International Journal of Heat and Mass Transfer
- Pub Date:
- March 1991
- Bibcode:
- 1991IJHMT..34..625M
- Keywords:
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- Gas Injection;
- Heat Transfer;
- Porous Materials;
- Thermal Protection;
- Heat Flux;
- Numerical Analysis;
- Temperature Distribution;
- Fluid Mechanics and Heat Transfer