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Journal Articles International Journal of Heat and Mass Transfer Year : 2020

Sublimation and deposition in gaseous mixtures

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Abstract

The sublimation and deposition behaviors of the Helium-Argon mixture is analyzed numerically in the temperature range where Helium is only in gaseous state while Argon can sublimate and deposit on its own solid phase. The McCormack model is implemented to model the Boltzmann collision term. Three kinds of potential are used for simulation of the intermolecular collisions: Hard Sphere, Lennard-Jones potential, and ab initio. The matrices of the kinetic coefficients have been obtained for different values of the rarefaction parameters and molar fraction of non-sublimating gas. The influence of the intermolecular potential on the kinetic coefficients as well as on the gas macroscopic profiles has been analyzed.
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Dates and versions

hal-03103071 , version 1 (07-01-2021)

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Alexey Ph Polikarpov, Irina Martin Graur, Felix Sharipov. Sublimation and deposition in gaseous mixtures. International Journal of Heat and Mass Transfer, 2020, 160, pp.120213. ⟨10.1016/j.ijheatmasstransfer.2020.120213⟩. ⟨hal-03103071⟩
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