3 papers
physics.flu-dyn2026
Implementation and Extension of the Variance-Reduced BGK Method in PICLas
Leon Teichröb, Félix Garmirian, Marcel Pfeiffer
Traditional particle-based kinetic methods, such as DSMC, suffer from prohibitive computational cost in low-signal flows, where the deviation from thermodynamic equilibrium is smal…
physics.comp-ph2025
Comparison of stochastic BGK and FP methods for the simulation of non-equilibrium multi-species molecular gas flows
Franziska Hild, Marcel Pfeiffer
Due to limited possibilities of experimental investigations for non-equilibrium gas flows, numerical results are of highest interest. Although the well-established Direct Simulatio…
physics.flu-dyn2024
Crank-Nicolson BGK Integrator for Multi-Scale Particle-Based Kinetic Simulations
Marcel Pfeiffer, Félix Garmirian, Tobias Ott
Solving the Bhatnagar-Gross-Krook (BGK) equation with a stochastic particle approach enables efficient and flexible simulations of flows in the transition regime, between continuum…