Heat and mass transfer in thermoresisting compoisite materials under high-temperature loading

Аuthors

Kuznetsova E. L.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

e-mail: lareyna@mail.ru

Abstract

Based on both nonlinear filtration ofpyrolysis gases in porous residues of destructing composite materials and binding agents destruction models a new complex mathematical model of heat-resistant composite protections for flying vehicles subjected to high-temperature loadings by hypersonic gas flows is presented. A numerical method to solve the formulated problem is also described. The proposed nonlinear filtration's model is useful to compute the below boundary ofpyrolyse gases flow stagnation's pressure needed for linear model's applicability domain defining. The numerical results' analysis proofs that the proposed modeling approach is able to describe composite materials' heat state theoretically. 

Keywords:

heat transfer, analytical solutions, nonlinear filtration's model, composite materials, moving boundaries