Direct Monte Carlo simulation of a microscale backward-facing flow

作者：Qin Feng Hua; Sun De Jun; Yin Xie Yuan

来源：Chinese Journal of Computational Physics, 2006, 23(2): 171-176.

• DSMC
• Microscale backward-facing
• Pressure boundary condition
• Reattachment length

A modified treatment for pressure boundary conditions in DSMC is shown. The microscale backward-facing gas flow is computed by a partitioned domain DSMC method and a general flow construction is obtained. It is shown that the recirculating flow region attached to the backward-facing step exists in the microscale flow with proper conditions while the region of separation on upper side does not. A discussion about the effect of flow parameters is given and a relationship between reattachment length and Reynolds number is obtained.

• 出版日期2006
• 单位中国科学技术大学