Particle-based hybrid and multiscale methods for nonequilibrium gas flows
Over the past half century, a variety of computational fluid dynamics (CFD) methods and the
direct simulation Monte Carlo (DSMC) method have been widely and successfully applied to …
direct simulation Monte Carlo (DSMC) method have been widely and successfully applied to …
Unified gas-kinetic wave-particle methods. II. Multiscale simulation on unstructured mesh
In this paper, we present a unified gas-kinetic wave-particle (UGKWP) method on
unstructured mesh for the multiscale simulation of continuum and rarefied flow. Inheriting …
unstructured mesh for the multiscale simulation of continuum and rarefied flow. Inheriting …
A novel transient-adaptive subcell algorithm with a hybrid application of different collision techniques in direct simulation Monte Carlo (DSMC)
S Stefanov, E Roohi, A Shoja-Sani - Physics of Fluids, 2022 - pubs.aip.org
A novel hybrid transient adaptive subcell (TAS) direct simulation Monte Carlo (DSMC)
algorithm is proposed to simulate rarefied gas flows in a wide range of Knudsen numbers. It …
algorithm is proposed to simulate rarefied gas flows in a wide range of Knudsen numbers. It …
A unified stochastic particle Bhatnagar-Gross-Krook method for multiscale gas flows
The stochastic particle method based on Bhatnagar-Gross-Krook (BGK) or ellipsoidal
statistical BGK (ESBGK) model approximates the pairwise collisions in the Boltzmann …
statistical BGK (ESBGK) model approximates the pairwise collisions in the Boltzmann …
[HTML][HTML] A second-order particle Fokker-Planck model for rarefied gas flows
Abstract The direct simulation Monte Carlo (DSMC) method has become a powerful tool for
studying rarefied gas flows. However, for the DSMC method to be effective, the cell size must …
studying rarefied gas flows. However, for the DSMC method to be effective, the cell size must …
An evaluation of the hybrid Fokker–Planck-DSMC approach for high-speed rarefied gas flows
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 …
simulations of rarefied gas flows. It has been proven that the numerical solution of the DSMC …
A kinetic model of the Boltzmann equation for non-vibrating polyatomic gases
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 …
based on the Rykov model for diatomic gases. We adopt two velocity distribution functions …
Progress of the unified wave-particle methods for non-equilibrium flows from continuum to rarefied regimes
The predictions of the multiple-regime flows from continuum regime to free molecular regime
are crucial for the aerodynamic design in a large number of engineering applications, such …
are crucial for the aerodynamic design in a large number of engineering applications, such …
Fokker–Planck–DSMC algorithm for simulations of rarefied gas flows
A Fokker–Planck based particle Monte Carlo algorithm was devised recently for simulations
of rarefied gas flows by the authors [1],[2],[3]. The main motivation behind the Fokker–Planck …
of rarefied gas flows by the authors [1],[2],[3]. The main motivation behind the Fokker–Planck …
[HTML][HTML] Extended lattice Boltzmann model for gas dynamics
We propose a two-population lattice Boltzmann model on standard lattices for the simulation
of compressible flows. The model is fully on-lattice and uses the single relaxation time …
of compressible flows. The model is fully on-lattice and uses the single relaxation time …