Studies on Vortex Tubes : (1) Experiments on Efficiency of Energy Separation : (2) On Profiles of Velocity and Temperature
Studies on Vortex Tubes : (1) Experiments on Efficiency of Energy Separation : (2) On Profiles of Velocity and Temperature
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DOI：
10.1299/jsme1958.8.433
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发表时间：
1964
期刊：
影响因子：
--
通讯作者：
H. Takahama
中科院分区：
文献类型：
--
作者：
H. Takahama
本文研究了涡流室中气流的速度和温度分布与主管、喷嘴、冷端孔板等尺寸的关系，为设计标准型高效能量分离涡流管提供了数据。他还获得了公式的轮廓的速度，温度和能量的空气流动在一个标准的涡流室，考虑空气流动的环形区域作为一个壁射流。与以往的公式不同，这些公式不包括径向速度分量或湍流扩散系数等因素，因此可用于预测标准涡流管在任何工作条件下的性能或效率。
In this paper, the author tried to investigate the relation between the profiles of velocity and temperature of the air flowing in a vortex chamber and the dimensions of the main tube, nozzle, cold-end orifice, etc. He obtained data for designing a standard type of vortex tube with high efficiency of energy separation. He also obtained formulae for the profiles of velocity, temperature and energy of the air flowing in a standard vortex chamber, considering the air flow in the annular region as a wall jet. Unlike the formulae represented hitherto, these formulae do not include factors such as radial velocity component or turbulent diffusivity and so may be used to predict the performance or efficiency of a standard vortex tube under any working conditions.