Effect of Compressibility on Gaseous Flows in a Micro-Tube
Effect of Compressibility on Gaseous Flows in a Micro-Tube
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DOI：
10.1115/ht2003-47166
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发表时间：
2005-11
期刊：
影响因子：
--
通讯作者：
Y. Asako;K. Nakayama
中科院分区：
文献类型：
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作者：
Y. Asako;K. Nakayama
通过实验和数值计算，得到了微尺度管内准充分发展区气体流动的阻力因子与雷诺数（f·Re）的乘积。采用切管法得到了管道沿着的压力分布。使用标称直径为100和150 μm的熔融石英管。通过求解二维可压缩动量方程和能量方程，得到了微管道内的流动特性。数值方法是基于拉格朗日欧拉（ALE）方法。结果表明，两者吻合较好，并且（f·Re）是马赫数的函数。
The product of friction factor and Reynolds number (f·Re) of gaseous flow in the quasi-fully developed region of a micro-tube was obtained experimentally and numerically. The tube cutting method was adopted to obtain the pressure distribution along the tube. The fused silica tubes whose nominal diameters were 100 and 150 μm, were used. Two-dimensional compressible momentum and energy equations were solved to obtain the flow characteristics in micro-tubes. The numerical methodology is based on the Arbitrary-Lagrangian-Eulerian (ALE) method. The both results agree well and it was found that (f·Re) is a function of Mach number.Copyright © 2003 by ASME