1442 DSMC における非弾性衝突モデルの輸送係数特性  [in Japanese] Transport Coefficients of inelastic collision model in the Monte Carlo Simulation  [in Japanese]

Transport coefficients of the statistical inelastic cross-section (SICS) model for the Monte Carlo simulation of rarefied gases are examined by the molecular diffusion in a heat bath gas and the channel flow between the parallel flat plates. It is reviled that the transport coefficients of SICS model are inconsistent with the Chapman-Enskog (CE) theory, Euken correction (EC), and recommended data because of overestimation of the effective collision frequency. The scattering law of the SICS model is modified by introducing the reduced impact parameter. The transport coefficients of the modified SICS (MSICS) model are reasonable agreement with those of CE, EC solutions and recommended data except for the law temperature range.