The Behavior of an Immiscible Equal-Density Liquid-Liquid Two-Phase Flow in a Horizontal Tube
The Behavior of an Immiscible Equal-Density Liquid-Liquid Two-Phase Flow in a Horizontal Tube
复制标题
水平管中不混溶等密度液-液两相流的行为
DOI：
10.1299/jsmeb.37.22
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Osamu Morimoto
中科院分区：
文献类型：
--
作者：
T. Fujii;J. Ohta;T. Nakazawa;Osamu Morimoto
由于空间设备的功率容量增大，余热进一步增加，利用汽液两相流的热管理系统近年来受到越来越多的关注。由于传热性能的改善，这导致了系统重量和泵功率的减少。然而，需要关于微重力条件下流动和传热特性的新信息。特别是，在微重力条件下，截面中孔隙组分的局部分布预计会与地球上不同。采用等密度液-液混合物（硅油和水）作为工作流体，在内径为25mm的水平管道中进行了流动特性研究。，这使得重力对两相的影响由于浮力而减弱。本文报道了有关流型、空隙率和压力损失的实验结果，并与其他研究者的结果进行了比较。
Because of further increase in waste heat due to the greater power capacity of equipment for use in space, the thermal management system using vapor-liquid two-phase flow has been attracting greater attention in recent years. This has led to a decrease in system weight and pump power as a result of improvements in the heat transfer performance. However, new information on the flow and heat transfer characteristics under microgravity conditions is required. In particular, the local distribution of void fractions in the cross section under the microgravity condition is expected to differ from that on earth. The flow behavior is investigated using an equal-density liquid-liquid mixture (silicone oil and water) as the working fluid in a horizontal pipe 25 mm in ID., which causes the effect of gravity on the two phases to be diminished due to buoyancy. In this paper, the experimental results related to flow pattern, void fraction, and pressure losses are reported, and compared with other investigators' results.