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標題:Comparison of 3-D and 2-D DSMC Heat Transfer Calculations of Low-Speed Short Microchannel Flows
學年95
學期1
出版(發表)日期2007/01/01
作品名稱Comparison of 3-D and 2-D DSMC Heat Transfer Calculations of Low-Speed Short Microchannel Flows
作品名稱(其他語言)
著者Zhen, Chaw-en; 洪祖昌; Hong, Zuu-chang; Lin, Ya-ju; Hong, Nien-tzu
單位淡江大學機械與機電工程學系
出版者Philadelphia: Taylor & Francis
著錄名稱、卷期、頁數Numerical Heat Transfer, Part A: Applications 52(3), pp.239-250
摘要The direct simulation Monte Carlo (DSMC) method has been employed to analyze the rationality of the 2-D simplification for a 3-D straight rectangular cross-sectional channel. An implicit treatment for low-speed inflow and outflow boundaries for the DSMC of the microchannel flow is employed. The 3-D microchannel flows are simulated with cross aspect ratios in the range of 1 and 5. The calculated flow properties in the 3-D cases are compared with the results of the 2-D case. They show that when the aspect ratio <3, the two extra side walls in the 3-D case have significant effects on the heat transfer and flow properties. When the aspect ratio is increased, the flow pattern and heat transfer characteristics tend to approach those of 2-D results. The 2-D simplification is found to be reasonable only when the cross aspect ratio is greater than 5.
關鍵字
語言英文
ISSN1040-7782
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別美國
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