The flow created by a sphere moving along the axis of a rotating, slightly-viscous fluid
The flow created by a sphere moving along the axis of a rotating, slightly-viscous fluid
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球体沿旋转的微粘性流体的轴移动所产生的流动
DOI：
10.1017/s0022112070000265
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发表时间：
1970
影响因子：
3.7
通讯作者：
T. Maxworthy
中科院分区：
文献类型：
--
作者：
T. Maxworthy
通过测量通过大型旋转水箱上升的球体上的阻力并观察其周围的流场，研究了标题流。在球体阴影内的上游和下游形成了几乎停滞的长区域，并被薄环形区域包围，该环形区域内的速度大于接近流的平均速度。发现了几个发生涡跳现象的区域，并得出结论，这些特征对观测到的流场的动力学施加了控制影响。
The title flow has been studied by measuring the drag force on, and by observing the flow field around, a sphere rising through a large, rotating tank of water. Long, almost stagnant, regions are formed up- and downstream within the shadow of the sphere and are surrounded by a thin annular region within which the velocity is larger than the mean velocity of the approach flow. Several regions are found within which vortex-jump phenomena occur and it is concluded that such features exert a controlling influence over the dynamics of the observed flow field.