Prediction of Gas Flow Through Short and Long 2-D Micro- and IVIanochannels Using a Generalized Slip Model

MEHRDAD RAISEE; NASSER VAHEDI

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Prediction of Gas Flow Through Short and Long 2-D Micro- and IVIanochannels Using a Generalized Slip Model

机译：使用广义滑移模型预测通过短和长二维微通道和IV纳米通道的气体流量

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This article reports the outcome of our recent effort in prediction of gas slip flow through micro- and nanochannels. Slip nitrogen flow through short (length to height ratio of 20) and long (length to height ratio of 2,500) microchannels is analyzed and discussed using the spectral element method and the generalize slip model boundary condition of Karniadakis and Beskok. The well-known curvature in pressure distribution, due to the compressible behavior of the gas flow, is observed. Comparison of numerical results with the experimental and direct simulation Monte Carlo (DSMC) data as well as previous reported numerical results showed that the generalized slip model is able to produce reliable results for both short and long microchannels.

机译：本文报道了我们最近在预测通过微通道和纳通道的瓦斯逸出量方面的成果。使用光谱元素方法以及Karniadakis和Beskok的广义滑模模型边界条件，分析和讨论了通过短（长高比为20）和长（长高比为2500）微通道的氮气流。由于气流的可压缩行为，观察到了众所周知的压力分布曲率。将数值结果与实验和直接仿真的蒙特卡洛（DSMC）数据以及先前报道的数值结果进行比较，结果表明，广义滑动模型能够为短和长微通道产生可靠的结果。

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来源
《Heat Transfer Engineering》 |2010年第8期|P.675-681|共7页
作者
MEHRDAD RAISEE; NASSER VAHEDI;
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作者单位

Department of Me-chanical Engineering, University of Tehran, PO Box 11365/4563, Tehran, Iran;

rnDepartment of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
h: channel height, m; Kn: Knudsen number; L: channel length, m; m: molecular mass, kg; Pr: Prandtl number;

机译：h：通道高度;m;Kn：努森数;L：通道长度;m;m：分子量;kg;Pr：Prandtl号;

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Prediction of Gas Flow Through Short and Long 2-D Micro- and IVIanochannels Using a Generalized Slip Model

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