MODELING OF HEAT AND MASS-TRANSFER IN AN EVAPORATIVE HEAT SHIELD WITH2-SIDED HEATING OF THE SHIELDED STRUCTURE

The characteristics of heat- and mass-transfer processes in a system f or the evaporative heat shielding of a structure in the form of an enc losure formed by two plane parallel baseplates and furnished with an o utlet are investigated by numerical modeling, where different values o f the heat flux are specified on the baseplates. Transfer phenomena in layers of a moisture-saturated capillary-porous material coating the inner surfaces of the baseplates of the enclosure and the heat and mas s transfer between these layers are analyzed for one set of governing parameters of the problem and for time-dependent external heat fluxes and pressure.