Simulation of the propagation of a heat front through a sample of a multilayer thermal insulation material under conditions of non-stationary heat flow

Butakov V.V., Lugovoy A.A., Varrik N.M., Babashov V.G.
UDC
621.763
DOI
10.18577/2307-6046-2022-0-10-128-139
Article PDF (Russian) (3.62 MB)
How to cite
Butakov V.V., Lugovoy A.A., Varrik N.M., Babashov V.G. Simulation of the propagation of a heat front through a sample of a multilayer thermal insulation material under conditions of non-stationary heat flow // Proceedings of VIAM. 2022. No. 10. DOI: 10.18577/2307-6046-2022-0-10-128-139. URL: https://test.viam.ru/en/journal/2022/10/11
Keywords
thermal insulation material, thermal conductivity coefficient, heat flux, multilayer multicomponent heat protection systems
Abstract

An urgent task for developers of heat-protective materials is to create methods for a comprehensive assessment of the complex of their key properties that reliably ensure their operation under operating conditions. The purpose of this study is to evaluate the properties of a layered heat-shielding material sufficient to simulate the propagation of a heat front through a sample under conditions of non-stationary heat flow. Work has been carried out to evaluate a set of thermophysical properties of the material sufficient to construct a model of the propagation of a thermal front through a sample under unilateral heating. A model of the passage of the heat front through the material has been created. The work on the numerical evaluation of the thermal conductivity coefficient and the heat transfer coefficient on the front sides of the multilayer sample was carried out.

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