旋转圆柱绕流的实验研究

C. Rheem
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引用次数: 0

摘要

在实验水池中研究了旋转圆柱体的流动。圆柱体旋转产生的切向速度随距圆柱体表面距离的对数值线性减小,且在径向上的分布与转速无关。切向速度变为零的距离大约是圆柱中心到圆柱半径的4.35倍。柱体附近的能量传递大于远离柱体的能量传递,并与速度分布线性方程的比例系数A成正比。在狭窄的盆地中,旋转对水的影响没有被完全吸收,在盆地中形成了流动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Study on the Flow Around a Rotating Cylinder
The flow around a rotating cylinder has been investigated at the experimental water basins. The tangential velocity generated by the rotation of the cylinder decreases linearly with the logarithmic value of the distance from the cylinder surface, and has a constant distribution in the radial direction regardless of the rotation speed. The distance at which the tangential velocity becomes zero is about 4.35 times of the cylinder radius from the cylinder center. The energy transfer is greater near the cylinder than far from the cylinder and proportional to the proportionality coefficient A of the linear equation of velocity distribution. In a narrow water basin, the influence of the rotation is not absorbed completely to the water and a flow was formed in the water basin.
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