IP-DSMC Method for Micro-scale Flow with Temperature Variation

摘要：

Based on the IP-DSMC method, a simple and effective temperature model is presented. By the developed IP-DSMC method with new temperature model, non-isothermal micro-flow is simulated. Comparing the developed IP results with the DSMC results, the correctness and effectiveness of the new temperature model are validated. Through simulating the orifice flow, it is found that it will cause numerical divergence if the second order central difference scheme of the mass conservation equation is used to update the information density when the local density gradient of the simulated flow is large. So the first order upwind scheme is recommended to update the information density.

关键词： IP method low flow micro-scale temperature variation flow

作者: Yao Zhaohui Hao Pengfei He Feng

作者单位: School of Aerospace. Tsinghua University, Beijing, 100084, China

会议类型: 国际会议

会议名称: The Fifth International Symposium on Fluid Power Transmission and Control(ISFP2007)（2007年国际流体动力传输与控制学术会议）

会议地点: 北戴河

会议语种:英文

页码: 49-52

在线出版日期: 2007-06-06（万方平台首次上网日期，不代表论文的发表时间）