4 papers · 1 filter
Small Rarefaction, Large Consequences: Limits of Navier Stokes Turbulence Simulations
Songyan Tian, Lei Wu
We conduct numerical simulations of rocket plume impingement on a lunar landing surface using two complementary frameworks: the Boltzmann equation, which naturally captures rarefie…
Coherent Rayleigh-Brillouin scattering: influences of intermolecular potentials and chirp rates
Lei Wu
Chirped coherent Rayleigh-Brillouin scattering (CRBS) is a flow diagnostic technique that offers high signal-to-noise ratios and nanosecond temporal resolution. To extract informat…
Accelerating the Monte Carlo simulation of the Enskog equation for multiscale dense gas flows
Bin Hu, Liyan Luo, Lei Wu
A general synthetic iterative scheme is proposed to solve the Enskog equation within a Monte Carlo framework. The method demonstrates rapid convergence by reducing intermediate Mon…
Temperature jump coefficients in polyatomic gas with strong translational/internal non-equilibrium
Bin Hu, Lei Wu
The temperature jump problem in polyatomic gas flow with translational/internal non-equilibrium is investigated, where the internal temperature is excited by volumetric heating, wh…