Study on noise reduction scheme in the Monte Carlo simulation forBoltzmann equation

点击翻译按钮获取中文摘要

A noise reduction scheme based on the Markov statistical process was introduced to the direct simulation Monte Carlo method, and then applied to the two dimensional Couette flow and cavity flow in the low speed and low Knudsen number rarefied gas fields. It was confirmed that the noise reduction scheme was reduced the statistical errors faster than those of DSMC simulation. However small discrepancies were observed in the profiles of the flow structures such as velocity and temperature distributions between the noise reduction scheme and DSMC method.