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 …
SPARTACUS: An open-source unified stochastic particle solver for the simulation of multiscale nonequilibrium gas flows
Recently, a unified stochastic particle (USP) method [14] has been developed for the
simulation of multiscale nonequilibrium gas flows. Compared with the conventional …
simulation of multiscale nonequilibrium gas flows. Compared with the conventional …
Extension of the Shakhov Bhatnagar–Gross–Krook model for nonequilibrium gas flows
Bhatnagar–Gross–Krook (BGK) models are widely used to study rarefied gas dynamics.
However, as simplified versions of the Boltzmann collision model, their performances are …
However, as simplified versions of the Boltzmann collision model, their performances are …
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 …
A time-relaxed Monte Carlo method preserving the Navier-Stokes asymptotics
F Fei - Journal of Computational Physics, 2023 - Elsevier
In this paper, a new time-relaxed Monte Carlo (TRMC) method is proposed for the
inhomogeneous Boltzmann equation. Compared to the standard TRMC scheme, the …
inhomogeneous Boltzmann equation. Compared to the standard TRMC scheme, the …
Combining particle-in-cell and direct simulation Monte Carlo for the simulation of reactive plasma flows
A combined approach for the simulation of reactive, neutral, partially or fully ionized plasma
flows is presented. This is realized in a code framework named “PICLas” for the approximate …
flows is presented. This is realized in a code framework named “PICLas” for the approximate …
The implementation of the three-dimensional unified gas-kinetic wave-particle method on multiple graphics processing units
To further improve the efficiency of the unified gas-kinetic wave-particle (UGKWP) method in
hypersonic rarefied non-equilibrium flows, particularly the particle simulation process, we …
hypersonic rarefied non-equilibrium flows, particularly the particle simulation process, we …
Exponential Bhatnagar-Gross-Krook integrator for multiscale particle-based kinetic simulations
M Pfeiffer, F Garmirian, MH Gorji - Physical Review E, 2022 - APS
Despite the development of an extensive toolbox of multiscale rarefied flow simulators, such
simulations remain challenging due to the significant disparity of collisional and …
simulations remain challenging due to the significant disparity of collisional and …
Optimisation of satellite geometries in Very Low Earth Orbits for drag minimisation and lifetime extension
The utilisation of the Very Low Earth Orbit (VLEO) region offers significant application
specific, technological, operational, and cost benefits. However, attaining sustained and …
specific, technological, operational, and cost benefits. However, attaining sustained and …
Evaluation of stochastic particle Bhatnagar–Gross–Krook methods with a focus on velocity distribution function
For precise application of Bhatnagar–Gross–Krook (BGK) methods, assessing its accuracy
in non-equilibrium flows is necessary. Generally, this assessment relies on macroscopic …
in non-equilibrium flows is necessary. Generally, this assessment relies on macroscopic …