Numerically simulating multiscale nonequilibrium gas flows that involve internal energy
exchange is a challenging problem in engineering applications due to the complexity of the …

Abstract The direct simulation Monte Carlo (DSMC) method is widely used for numerical
solutions of the Boltzmann equation. However, the associated computational cost becomes …

The implementation of the ellipsoidal statistical Bhatnagar-Gross-Krook (ESBGK) method in
the open-source particle code PICLas is extended for multi-species modeling of polyatomic …

Simulating hypersonic flow around a space vehicle is challenging because of the multiscale
and nonequilibrium nature inherent in these flows. To effectively deal with such flows, a …

This paper introduces a new asymptotic-preserving Monte Carlo (APMC) method for
simulating multi-species gas flows. This method decomposes the collision operator of the …

An improved mesoscale two-phase flow non-dimensional lattice Boltzmann model (NDLBM)
is developed for simulating dynamic balance effects of varying surface tension and …

Abstract A novel ES-BGK-based model of non-polytropic rarefied gases in the framework of
kinetic theory is presented. Key features of this model are: an internal state density function …

A system of Navier–Stokes-type equations with two temperatures is derived, for a polyatomic
gas with temperature-dependent specific heats (thermally perfect gas), from the ellipsoidal …

The simulation of rarefied gas flow based on the Boltzmann equation is challenging,
especially when the gas mixtures have disparate molecular masses. In this paper, a …

We propose a general kinetic framework for the description of a mixture of nonrelativistic
mono-or polyatomic gases undergoing any number of bi-molecular reactions. The …