量子効果を考慮した希薄気体流れの数値シミュレーション : 第 1 報量子散乱を取り入れた DSMC 法の性能(流体工学, 流体機械)

概要

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The quantum effect in the rarefied gas flow is studied by the direct simulation Monte Carlo method with the calculation of quantum mechanical scattering. The DSMC with quantum scattering and classical scattering are applied to the simulation of the highly expanded free jet of ^4He gas in order to compare with the measured data. It is shown that the parallel temperature of quantum mechanical scattering is higher than that of classical scattering and the normal temperature of quantum mechanical scattering is lower than that of classical calculation. The parallel and normal temperatures for the classical scattering mechanics are in better agreement with the measured data than those of the quantum mechanical scattering. The discrepancy of parallel and normal temperature between the quantum calculation and the measured data are not more than 2K and 0.3K respectively. It is hoped, therefore, that more experiment may be made for detailed discussion.
一般社団法人日本機械学会の論文
2001-12-25