Aerothermochemical interaction between hypersonic flows and surfaces of various geometric shapes
N.I. Sidnyaev, L.S. Sklyarinsky
Bauman Moscow State Technical University, Moscow, Russia
Keywords: models, aerothermomechanics, geometric shape, sublimation, equation, hypersound
Abstract
Theoretical models of aerothermochemical interaction between a flow surface and dissociated air are presented for the case of combustion and sublimation near the forward stagnation point of a blunt body. Research methods and results are generalized to obtain a solution based on the similarity method for the case of combustion and sublimation using graphite in arbitrary cross-sections of a cone, sphere, wedge, cylinder, plate, and spherically blunt cone under laminar flow conditions with high Reynolds numbers. For various geometric shapes in a wide range of hypersonic flow conditions, calculations of the mass flux, heat flux, and friction drag coefficient are presented, the results of which are linked by universal dependencies expressed in terms of the stagnation enthalpy, pressure, velocity gradient, pressure gradient parameter, and surface temperature.
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