An Analytical Study of Separated Flow About Circular Cylinders
An Analytical Study of Separated Flow About Circular Cylinders
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圆柱体分流流动的解析研究
DOI：
10.1115/1.3605180
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发表时间：
1968
期刊：
影响因子：
--
通讯作者：
T. Sarpkaya
中科院分区：
文献类型：
--
作者：
T. Sarpkaya
利用势流模型分析了时变流作用在圆柱上的力。从身体侧面弹起的剪切层被线涡和无限数量的旋涡片的组合所取代，这些旋涡片将新生的旋涡连接到各自的供养区。将分析结果应用于圆柱对称涡分离的运动学和动力学特性预测。所得结果与现有的最新实验数据相吻合。对尾迹的发展过程进行了跟踪，结果显示了以线涡和涡片为代表的剪切层的一次和二次卷起。
The forces acting on a circular cylinder by a time-dependent flow are analyzed through the use of a potential flow model. The shear layers which spring from the sides of the body are replaced by a combination of line vortices and infinite number of vortex sheets which connect the nascent vortices to their respective feeding zones. The analysis is then applied to the prediction of the kinematic and dynamic characteristics of symmetric vortex separation on circular cylinders. The results compare favorably with the latest available experimental data. The development of the wake is also traced and the results show the primary and secondary roll-ups of the shear layers as represented by the line vortices and vortex sheets.