Effect of compressibility on gaseous flows in a micro-tube

被引：90

作者：

Asako, Y ^{[1
]}

Nakayama, K ^{[1
]}

Shinozuka, T ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Dept Mech Engn, Hachioji, Tokyo 1920397, Japan

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2005年 / 48卷 / 23-24期

基金：

日本学术振兴会;

关键词：

micro-tube; gaseous flow; friction factor; compressibility;

D O I：

10.1016/j.ijheatmasstransfer.2005.05.039

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A product of friction factor and Reynolds number (f (.) Re) of gaseous flow in a quasi-fully developed region of a micro-tube was obtained numerically and experimentally. Two-dimensional compressible momentum and energy equations were solved for a wide range of Reynolds number and Mach number for both 'no heat conduction' and isothermal flow conditions. It was found from numerical results that the product of friction factor and Reynolds number (f (.) Re) in a quasi-fully developed region is expressed as a function of Mach number. The tube cutting method was adopted to obtain the pressure variation along the tube. Fused silica tubes of nominal diameter of 150 mu m, were used for experiments. The experimental results also indicate that (f (.) Re) is a function of Mach number. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：4985 / 4994

页数：10

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