INTERACTION OF HIGH-TEMPERATURE ONE-PHASE AND 2-PHASE FLOWS WITH ACTIVE THERMOPROTECTIVE ELEMENTS

Experimental data on the heat and mass transfer with intensive gas inj ection in gas - disperse systems through porous and perforated surface s are generalized. On the basis of experimental data on the heat and m ass transfer in active thermoprotective systems, approximate dependenc es for calculating the heat transfer at porous and perforated surfaces with intense gas and gas-suspension injection are obtained. The influ ence of the methods of oxidant supply on the rate of heat transfer at the permeable surface with a high-enthalpy one- and two-phase flow is investigated. Experimental high-temperature teststands and methods of measuring the basic heat- and mass-transfer characteristics are report ed.