Periodic Motion of a Point Vortex in a Corner Subject to a Potential Flow
Periodic Motion of a Point Vortex in a Corner Subject to a Potential Flow
复制标题
势流作用下角点涡的周期性运动
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
Y. Suh
中科院分区：
文献类型：
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作者：
Y. Suh
Motion of a point vortex in a 90°-corner which is subject to a potential flow is studied. There exists a fixed point at which the vortex is stationary. It turns out that the vortex motion is periodic regardless of the initial position except the fixed point. The fixed point is apart from the corner in a distance proportional to the square root of the ratio of the vortex strength (circulation) and the strength of the potential flow. The period of the circulatory motion of the vortex in a small vicinity of the fixed point is in inverse proportion to the potential-flow strength and is independent of the vortex strength. The motion of the fluid driven by both the potential flow and the vortex is also studied; depending on the location of the stagnation points, generally four kinds of flow patterns are classified.
