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Fizika Goreniya i Vzryva, 2021 Volume 57, Issue 5, Pages 55–66 (Mi fgv789)

Simulation of an electric thermal explosion with account for changes in the thermal characteristics of a gasless system

I. S. Gordopolova, V. A. Shcherbakov

Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, 142432, Chernogolovka, Russia

Abstract: This paper describes the mathematical simulation of an electric thermal explosion (ETE) in a gasless system placed in an annular layer of a conductive product. The influence of changes in the thermoelectric characteristics of a sample for the implementation of an ETE, thermal conditions, and ETE heat patterns is considered. Based on the results obtained, the previously established experimental result on the anomalous effect of the power of electric heating on the ETE parameters of a mixture of titanium and carbon black powders is explained.

Keywords: electric thermal explosion, simulation, temperature and concentration fields, thermoelectric characteristics, electric thermal explosion, simulation, temperature and concentration fields, thermoelectric characteristics.

UDC: 536.46

Received: 02.07.2020
Revised: 29.01.2021
Accepted: 09.03.2021

DOI: 10.15372/FGV20210505


 English version:
Combustion, Explosion and Shock Waves, 2021, 57:5, 559–569

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© Steklov Math. Inst. of RAS, 2024