ARTICLE:

• MODELING OF THERMO-EROSION DESTRUCTION OF MATERIALS IN SUPERSONIC HETEROGENEOUS FLOWS  download article

T. V. Ershova
Institute of High Temperatures of the Russian Academy of Science, Moscow, Russia, 127412

D. S. Mikhatulin
Institute of High Temperatures of the Russian Academy of Science, Moscow, Russia, 127412

D. L. Reviznikov
Moscow Aviation Institute (State Technical University), Moscow, Russia

A. V. Sposobin
Moscow Aviation Institute (State Technical University), Moscow, Russia

ABSTRACT

The paper is focused on theoretical modeling of the combined thermal destruction and erosion of hypersonic vehicles in a dust-laden atmosphere. The mass entrainment model is applied based on the concept of the effective enthalpy of erosion destruction and pulsed layer-by-layer carryover of material in the process of collision with a cloud of particles. Some results of ground-based experiments directed on the study of the effective enthalpy of erosion − surface layer temperature dependence are discussed. Results of numerical simulation of the thermal-erosion destruction are presented for two types of thermal protection materials − fiber-glass plastic and carbon material. The cases of a monodisperse flow and of a two-sized admixture are considered. The impact of the temperature dependence of the effective enthalpy on the considered process at different determinative parameters is discussed.

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