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arXiv · 2102.12757

BGK models for inert mixtures: comparison and applications

Sebastiano Boscarino·Seung Yeon Cho·Maria Groppi·Giovanni Russo
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Abstract

Consistent BGK models for inert mixtures are compared, first in their kinetic behavior and then versus the hydrodynamic limits that can be derived in different collision-dominated regimes. The comparison is carried out both analytically and numerically, for the latter using an asymptotic preserving semi-Lagrangian scheme for the BGK models. Application to the plane shock wave in a binary mixture of noble gases is also presented.

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Sebastiano Boscarino, Seung Yeon Cho, Maria Groppi, Giovanni Russo. 2021-02-25. BGK models for inert mixtures: comparison and applications. https://arxiv.org/abs/2102.12757

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