3 papers
physics.comp-ph2026
Development of a Particle Bhatnagar-Gross-Krook Method for Rarefied Monatomic Gas Mixtures
Inchan Kim, Joonbeom Kim, Woonghwi Park +1
The Direct Simulation Monte Carlo (DSMC) method has long served as a reliable numerical approach for simulating rarefied and non-equilibrium gas flows. Its computational cost, howe…
physics.flu-dyn2026
A Particle Multi-Relaxation Bhatnagar-Gross-Krook Method for Rarefied Monatomic Gas Mixtures
Inchan Kim, Joonbeom Kim, Woonghwi Park +1
Kinetic models based on the Bhatnagar-Gross-Krook (BGK) framework provide an efficient alternative to the Boltzmann equation for rarefied gas flows; however, existing formulations…
physics.flu-dyn2025
Effects of Surface Corrugation on Gas-Surface Scattering and Macroscopic Flows
Woonghwi Park, Eunji Jun
Gas-surface scattering exhibits a transition from thermal to structure scattering regime as incident energy increases, characterized by changes in angular and energy distributions.…