Abstract:

Theoretical models of the aerothermochemical interaction between the surface of the aircraft flow and dissociated air for the case of combustion and sublimation are presented. Gorenje The thermophysical properties and kinetic constants of thermoplastic materials have been studied over a wide temperature range. It is postulated that the destruction of heat-shielding materials is accompanied by the intensive formation of gaseous products, the molecular weight of which depends on the pressure and composition of the incoming flow. Due to the relatively low temperature of the collapsing surface and low thermal conductivity, thermal protective coatings accumulate a small amount of heat in the wall layer, which leads to almost the removal of the heated zone. It is noted that thermoplastics are polymers of linear structure with a degree of polymerization and have a high binding energy of the polymer chain. Crystallites are represented as amorphous fragments of oriented, tightly compressed macromolecules