Abstract
The Lennard-Jones (6-12)-potential-type isotropic scattering model for the direct-simulation Monte Carlo (DSMC) method is presented. This model is an extention of the variable hard sphere (VHS) model in which diameter (collision cross section) varies with relative collision velocity (energy) and deflection angle is isotropic. The validity of the Lennard-Jones (LJ)-potential-type isotropic scattering model is studied by the simulation of argon (Ar) normal shock wave structure. Calculation results, such as number density, velocity, temperature, and heat flux are in good agreement with those of LJ potential.
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