Discrete Boltzmann modeling of compressible flows

A Xu, G Zhang, Y Zhang - Kinetic Theory, 2018 - books.google.com
Mathematically, the typical difference of discrete Boltzmann model (DBM) from the traditional
hydrodynamic one is that the Navier-Stokes (NS) equations are replaced by a discrete …

Three-dimensional discrete Boltzmann models for compressible flows in and out of equilibrium

Y Gan, A Xu, G Zhang, H Lai - Proceedings of the Institution …, 2018 - journals.sagepub.com
We present a series of three-dimensional discrete Boltzmann models for compressible flows
in and out of equilibrium. The key formulating technique is the construction of discrete …

Discrete Boltzmann modeling of high-speed compressible flows with various depths of non-equilibrium

D Zhang, A Xu, Y Zhang, Y Gan, Y Li - Physics of Fluids, 2022 - pubs.aip.org
The non-equilibrium high-speed compressible flows present wealthy applications in
engineering and science. With the deepening of Thermodynamic Non-Equilibrium (TNE) …

Discrete Boltzmann trans-scale modeling of high-speed compressible flows

Y Gan, A Xu, G Zhang, Y Zhang, S Succi - Physical Review E, 2018 - APS
We present a general framework for constructing trans-scale discrete Boltzmann models
(DBMs) for high-speed compressible flows ranging from continuum to transition regime. This …

A multi-component discrete Boltzmann model for nonequilibrium reactive flows

C Lin, KH Luo, L Fei, S Succi - Scientific reports, 2017 - nature.com
We propose a multi-component discrete Boltzmann model (DBM) for premixed,
nonpremixed, or partially premixed nonequilibrium reactive flows. This model is suitable for …

Two-fluid discrete Boltzmann model for compressible flows: Based on ellipsoidal statistical Bhatnagar–Gross–Krook

D Zhang, A Xu, Y Zhang, Y Li - Physics of Fluids, 2020 - pubs.aip.org
A two-fluid Discrete Boltzmann Model (DBM) for compressible flows based on the ellipsoidal
statistical Bhatnagar–Gross–Krook is presented. The model has a flexible Prandtl number or …

A paradigm for modeling and computation of gas dynamics

K Xu, C Liu - Physics of Fluids, 2017 - pubs.aip.org
In the continuum flow regime, the Navier-Stokes (NS) equations are usually used for the
description of gas dynamics. On the other hand, the Boltzmann equation is applied for the …

Uniformly stable numerical schemes for the Boltzmann equation preserving the compressible Navier–Stokes asymptotics

M Bennoune, M Lemou, L Mieussens - Journal of Computational Physics, 2008 - Elsevier
In this paper, we develop a numerical method to solve Boltzmann like equations of kinetic
theory which is able to capture the compressible Navier–Stokes dynamics at small Knudsen …

Discrete ellipsoidal statistical BGK model and Burnett equations

YD Zhang, AG Xu, GC Zhang, ZH Chen, P Wang - Frontiers of Physics, 2018 - Springer
A new discrete Boltzmann model, the discrete ellipsoidal statistical Bhatnagar–Gross–Krook
(ESBGK) model, is proposed to simulate nonequilibrium compressible flows. Compared with …

Discrete Boltzmann method for non-equilibrium flows: Based on Shakhov model

Y Zhang, A Xu, G Zhang, Z Chen, P Wang - Computer Physics …, 2019 - Elsevier
A general framework for constructing discrete Boltzmann model for non-equilibrium flows
based on the Shakhov model is presented. The Hermite polynomial expansion and a set of …