Pressure boundary treatment in internal gas flows at subsonic speed using the DSMC method

Jong-Shinn Wu, W. S. Lee, Fred Lee, S. C. Wong

研究成果: Conference contribution同行評審

5 引文 斯高帕斯(Scopus)

摘要

Two numerical procedures in the Direct Simulation Monte Carlo method, applying particle flux conservation at inflow/outflow pressure boundaries, are developed to treat the two most important boundary conditions encountered in micromechanical and vacuum devices involving internal gaseous flows. The first one is for both specified pressures at inlet and exit; while the second one is for specified mass flow rate and exit pressure. Both numerical procedures have been tested on short and long micro-channels in the slip and transitional regimes. Excellent agreement has been found between the current results and the previous reported numerical results as well as the experimental data for the first type of boundary conditions. Finally, the first type boundary condition is applied to compute the conductance of flow through a circular pipe to demonstrate its application in vacuum technology. Results compare well with previous experimental data by Knudsen (1909).

原文American English
主出版物標題Rarefied Gas Dynamics
主出版物子標題22nd International Symposium
編輯Timothy J. Bartel, Michael A. Gallis
發行者American Institute of Physics Inc.
頁面408-416
頁數9
ISBN(電子)0735400253
DOIs
出版狀態Published - 30 8月 2001
事件22nd International Symposium on Rarefied Gas Dynamics - Sydney, Australia
持續時間: 9 7月 200014 7月 2000

出版系列

名字AIP Conference Proceedings
585
ISSN(列印)0094-243X
ISSN(電子)1551-7616

Conference

Conference22nd International Symposium on Rarefied Gas Dynamics
國家/地區Australia
城市Sydney
期間9/07/0014/07/00

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