https://doi.org/10.1140/epjd/s10053-023-00646-0
Regular Article - Plasma Physics
A model for determining thermodynamic and transport properties of electric arc plasmas at elevated pressures and temperatures and its validations
1
Department of Physics, Shahrood University of Technology, Shahrood, Iran
2
Department of Aerospace Engineering, Sharif University of Technology, Tehran, Iran
Received:
25
October
2022
Accepted:
30
March
2023
Published online:
24
June
2023
Calculation of thermodynamic properties and air transport properties at 19 pressures and a temperature range from 300 to 100,000 K and calculation of argon properties at atmospheric pressure and a temperature range from 300 to 30,000 K. A self-consistent approach for the thermodynamic properties and the higher-order approximation of the Chapman–Enskog method for the transport properties have been used. Debye–Hukel corrections have been considered in the thermodynamic properties. These transport properties under local thermodynamic equilibrium conditions are placed inside the magnetohydrodynamic equations to simulate two models argon arc and air arc, at atmospheric pressure. This self-consistent model is effective for analysing the physical behaviour of the high-intensity electrical discharge at atmospheric pressure. The simulation results show that a complete local chemical equilibrium occurs when the properties of the plasma reach more than 100,000 K at each pressure. Air and argon transport properties have been fitted with Gaussian and Sigmoid functions and over 58 species have been considered in the air composition.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
