QQ客服 官方微博 反馈留言

	Simulations for gas flows in microgeometries using the direct simulation Monte Carlo method
	Moran Wang ; Zhixin Li
	2010-05-07 ; 2010-05-07
关键词	Theoretical or Mathematical/ aerodynamics channel flow computational fluid dynamics flow separation flow simulation Knudsen flow microfluidics Monte Carlo methods orifices (mechanical) Poiseuille flow slip flow/ gas flow simulations direct simulation Monte Carlo method microgas flows MEMS CFD Knudsen number microPoiseuille flow slip analytical solutions continuum theory orifice flow microchannel flow flow separation Reynolds numbers/ A4760 Flows in ducts, channels, and conduits A4785 Applied fluid mechanics A4745G Slip flows A4740 Compressible flows shock and detonation phenomena A4710 General fluid dynamics theory, simulation and other computational methods A0710C Micromechanical devices and systems E2130 Fluid mechanics and aerodynamics (mechanical engineering) E2160 Micromechanics (mechanical engineering)
中文摘要	Micro gas flows are often encountered in MEMS devices and classical CFD could not accurately predict the flow and thermal behavior due to the high Knudsen number. Therefore, the gas flow in microgeometries was investigated using the direct simulation Monte Carlo (DSMC) method. New treatments for boundary conditions are verified by simulations of micro-Poiseuille flow, compared with the previous boundary treatments, and slip analytical solutions of the continuum theory. The orifice flow and the corner flow in microchannels are simulated using the modified DSMC codes. The predictions were compared with existing experimental phenomena as well as predictions using continuum theory. The results showed that the channel geometry significantly affects the microgas flow. In the orifice flow, the flow separation occurred at very small Reynolds numbers. In the corner flow, no flow separation occurred even with a high driving pressure. The DSMC results agreed well with existing experimental information. [All rights reserved Elsevier].
语种	英语 ; 英语
出版者	Elsevier ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/15719]
专题	清华大学
推荐引用方式 GB/T 7714	Moran Wang,Zhixin Li. Simulations for gas flows in microgeometries using the direct simulation Monte Carlo method[J],2010, 2010.
APA	Moran Wang,&Zhixin Li.(2010).Simulations for gas flows in microgeometries using the direct simulation Monte Carlo method..
MLA	Moran Wang,et al."Simulations for gas flows in microgeometries using the direct simulation Monte Carlo method".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。