Compressible laminar flow in a capillary
Compressible laminar flow in a capillary
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毛细管中的可压缩层流
DOI：
10.1017/s0022112093000011
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发表时间：
1993
影响因子：
3.7
通讯作者：
P. Gulik
中科院分区：
文献类型：
--
作者：
H. Berg;C. A. Seldam;P. Gulik
本文从流体力学的变分方程出发，用解析和数值相结合的方法，对毛细管内定常、等温、可压缩和层流流动的质量流量方程进行了求解。结果表明，到目前为止，最主要的修正是由于流体的可压缩性，可以从状态方程计算。对流体加速和速度剖面变化的综合修正似乎比迄今接受的修正大1.5倍。
An equation based on the hydrodynamical equations of change is solved, analytically and numerically, for the calculation of the viscosity from the mass-flow rate of a steady, isothermal, compressible and laminar flow in a capillaiy. It is shown that by far the most dominant correction is that due to the compressibility of the fluid, computable from the equation of state. The combined correction for the acceleration of the fluid and the change of the velocity profile appears to be 1.5 times larger than the correction accepted to date.