A selection limiter of DSMC for near continuum flows

作者：Zhang Ronghai^*; Yao Wei; Li Jindong

来源：Communications in Nonlinear Science & Numerical Simulation, 2008, 13(10): 2203-2212.

DOI：10.1016/j.cnsns.2007.06.004

• DSMC
• selection limiter
• collision limiter
• near continuum flow

A selection limiter for the direct simulation monte carlo, (DSMC) method is proposed to simulate near continuum flows. The selection limiter is calculated according to a continuum breakdown parameter and is used to limit the number of potential collision pairs. A Couette flow, a supersonic flow into a pitot probe and a nozzle plume flow are studied and compared with the standard DSMC to validate present method. It is found that its computational cost is about 35% of that of the standard DSMC method with satisfactory accuracy in the near continuum regime.

• 出版日期2008-12
• 单位中国空间技术研究院