arXiv Open Access 2022

An ES-BGK model for diatomic gases with correct relaxation rates for internal energies

Julien Mathiaud Luc Mieussens Marcel Pfeiffer

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Abstrak

We propose a new ES-BGK model for diatomic gases which allows for translational-rotational and translational-vibrational energy exchanges, as given by Landau-Teller and Jeans relaxation equations. This model is consistent with the general definition of the vibrational and rotational collision numbers that are also commonly used in DSMC solvers. It is proved to satisfy the H-theorem and to give the correct transport coefficients, up to the volume viscosity.

Topik & Kata Kunci

physics.flu-dyn math-ph

Penulis (3)

Julien Mathiaud

Luc Mieussens

Marcel Pfeiffer

Format Sitasi

APA MLA BibTeX

Mathiaud, J., Mieussens, L., Pfeiffer, M. (2022). An ES-BGK model for diatomic gases with correct relaxation rates for internal energies. https://arxiv.org/abs/2202.10906

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Informasi Jurnal

Tahun Terbit: 2022
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓