Data reduction of friction factor of compressible flow in micro-channels
Data reduction of friction factor of compressible flow in micro-channels
复制标题
微通道内可压缩流动摩擦系数的数据简化
DOI：
10.1016/j.ijheatmasstransfer.2014.05.009
复制
发表时间：
2014
影响因子：
5.2
通讯作者：
D.Kawashima and Y.Asako
中科院分区：
文献类型：
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作者：
Suhaimi Illias;他6名;Suhaimi ILLIAS;D.Kawashima and Y.Asako
本文重点研究可压缩流体流经微通道的摩擦系数的数据缩减。计算可压缩流的摩擦系数需要压力和温度。因此，在以往的许多实验数据缩减中，由于实验技术的限制，微通道内可压缩流动的温度测量相当困难，摩擦系数都是在等温流假设下获得的。作者发现，在绝热通道中存在一维流动（范诺流）的假设下，可以从压力获得流体的温度。在本文中，将我们提出的方程获得的温度与数值模拟的结果进行了比较，并且还比较了摩擦系数。
This paper focuses on data reduction of friction factor of compressible fluid flowing through micro-channels. The both pressure and temperature are required to calculate the friction factor of compressible flow. Therefore, in the past data reduction of many experiments, the friction factors have been obtained under the assumption of isothermal flow since temperature measurement of compressible flow in micro-channels is quite difficult due to the experimental technique limitation. The authors find that the temperature of the fluid can be obtained from the pressure under the assumption of one dimensional flow in an adiabatic channel (Fanno flow). In this paper, the temperatures obtained by our proposed equation are compared with results of numerical simulations and friction factors are also compared.