Modeling nonequilibrium gas flow based on moment equations

M Torrilhon - Annual review of fluid mechanics, 2016 - annualreviews.org
This article discusses the development of continuum models to describe processes in gases
in which the particle collisions cannot maintain thermal equilibrium. Such a situation typically …

[BOOK][B] Classical and relativistic rational extended thermodynamics of gases

T Ruggeri, M Sugiyama - 2021 - Springer
The book aims to present the recent developments in Rational Extended Thermodynamics
(RET) of gases in both classical and relativistic cases. The RET theory is a …

[BOOK][B] Rational extended thermodynamics beyond the monatomic gas

T Ruggeri, M Sugiyama - 2015 - Springer
This book aims to explain recent developments in Rational Extended Thermodynamics
(RET), in particular those that have occurred since the publication of the book Rational …

Reflected shock waves in air components and their mixtures: Validation of theoretical models

D Kravchenko, O Kunova, E Kustova, M Melnik - Acta Astronautica, 2024 - Elsevier
Nonequilibrium flows of air components behind reflected shock waves are systematically
studied on the basis of several theoretical models for the rate coefficients of fully coupled …

A kinetic model of the Boltzmann equation for non-vibrating polyatomic gases

L Wu, C White, TJ Scanlon, JM Reese… - Journal of Fluid …, 2015 - cambridge.org
A kinetic model of the Boltzmann equation for non-vibrating polyatomic gases is proposed,
based on the Rykov model for diatomic gases. We adopt two velocity distribution functions …

Rational extended thermodynamics of a rarefied polyatomic gas with molecular relaxation processes

T Arima, T Ruggeri, M Sugiyama - Physical Review E, 2017 - APS
We present a more refined version of rational extended thermodynamics of rarefied
polyatomic gases in which molecular rotational and vibrational relaxation processes are …

A kinetic model for a polyatomic gas with temperature-dependent specific heats and its application to shock-wave structure

S Kosuge, HW Kuo, K Aoki - Journal of Statistical Physics, 2019 - Springer
The ellipsoidal statistical (ES) model of the Boltzmann equation for a polyatomic gas with
constant specific heats (calorically perfect gas), proposed by Andries et al.(Eur J Mech B …

Thermodynamically admissible boundary conditions for the regularized 13 moment equations

AS Rana, H Struchtrup - Physics of Fluids, 2016 - pubs.aip.org
A phenomenological approach to the boundary conditions for linearized R13 equations is
derived using the second law of thermodynamics. The phenomenological coefficients …

Reaction and internal energy relaxation rates in viscous thermochemically non-equilibrium gas flows

EV Kustova, GP Oblapenko - Physics of Fluids, 2015 - pubs.aip.org
In the present paper, reaction and energy relaxation rates as well as the normal stress are
studied for viscous gas flows with vibrational and chemical non-equilibrium. Using the …

An ES-BGK model for polyatomic gases in rotational and vibrational nonequilibrium

Y Dauvois, J Mathiaud, L Mieussens - European Journal of Mechanics-B …, 2021 - Elsevier
We propose an extension of the Ellipsoidal–Statistical BGK model to account for discrete
levels of vibrational energy in a rarefied polyatomic gas. This model satisfies an H-theorem …