Progress of discrete unified gas-kinetic scheme for multiscale flows

Z Guo, K Xu - Advances in Aerodynamics, 2021 - Springer
Multiscale gas flows appear in many fields and have received particular attention in recent
years. It is challenging to model and simulate such processes due to the large span of …

Further acceleration of multiscale simulation of rarefied gas flow via a generalized boundary treatment

W Liu, Y Zhang, J Zeng, L Wu - Journal of Computational Physics, 2024 - Elsevier
The recently-developed general synthetic iterative scheme (GSIS) is efficient in simulating
multiscale rarefied gas flows due to the coupling of mesoscopic kinetic equation and …

Efficient parallel solver for rarefied gas flow using GSIS

Y Zhang, J Zeng, R Yuan, W Liu, Q Li, L Wu - Computers & Fluids, 2024 - Elsevier
Recently, the general synthetic iterative scheme (GSIS) has been proposed to find the
steady-state solution of the Boltzmann equation in the whole range of gas rarefaction, where …

Rarefied gas effect in hypersonic shear flows

J Chen, H Zhou - Acta Mechanica Sinica, 2021 - Springer
Recently, as aerodynamics was applied to flying vehicles with very high speed and flying at
high altitude, the numerical simulation based on the Navier–Stokes (NS) equations was …

General synthetic iterative scheme for polyatomic rarefied gas flows

J Zeng, R Yuan, Y Zhang, Q Li, L Wu - Computers & Fluids, 2023 - Elsevier
Recently, the general synthetic iterative scheme (GSIS) has been proposed to solve the
Boltzmann equation efficiently and accurately in the whole range of gas rarefaction. Here …

Investigation of nonlinear squeeze-film dam** involving rarefied gas effect in micro-electro-mechanical systems

Y Wang, S Liu, C Zhuo, C Zhong - Computers & Mathematics with …, 2022 - Elsevier
In this paper, the nonlinear squeeze-film dam** (SFD) involving rarefied gas effect in the
micro-electro-mechanical systems (MEMS) is investigated. Considering the motion of …

Fast convergence and asymptotic preserving of the general synthetic iterative scheme

W Su, L Zhu, L Wu - SIAM Journal on Scientific Computing, 2020 - SIAM
Recently the general synthetic iteration scheme (GSIS) was proposed for the Boltzmann
equation W. Su et al., J. Comput. Phys., 407 (2020), 109245, where various numerical …

A conservative implicit scheme for three-dimensional steady flows of diatomic gases in all flow regimes using unstructured meshes in the physical and velocity spaces

R Zhang, S Liu, J Chen, C Zhuo, C Zhong - Physics of Fluids, 2024 - pubs.aip.org
A conservative implicit scheme in the finite volume discrete velocity method framework is
proposed for solving the three-dimensional steady flows of molecular gases in all flow …

General synthetic iterative scheme for rarefied gas mixture flows

J Zeng, Q Li, L Wu - Journal of Computational Physics, 2024 - Elsevier
The numerical simulation of rarefied gas mixtures with disparate mass and concentration is
a huge research challenge. Based on our recent kinetic modeling for monatomic gas mixture …

An evaluation of the hybrid Fokker–Planck-DSMC approach for high-speed rarefied gas flows

S Kim, E Jun - Computers & Fluids, 2024 - Elsevier
Abstract The Direct Simulation Monte Carlo (DSMC) method has been widely used for
simulations of rarefied gas flows. It has been proven that the numerical solution of the DSMC …