The decay of a pair of point vortices in a viscous fluid
The decay of a pair of point vortices in a viscous fluid
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粘性流体中一对点涡的衰减
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
H. Lugt
中科院分区：
文献类型：
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作者：
S. Ohring;H. Lugt
通过有限差分法求解Navier-Stokes方程，研究了粘性不可压缩流体中两个等强度反向旋转点涡的衰减。雷诺数为10，50和100的解决方案进行了比较，由Cantwell和Rott提出的模型。给出了等涡度线、平移速度衰减率和半平面环流，以及涡对的发散路径。
The decay of two counter‐rotating point vortices of equal strength in a viscous incompressible fluid is studied by solving the Navier–Stokes equations with a finite‐difference technique. Solutions for Reynolds numbers 10, 50, and 100 are compared with a model presented by Cantwell and Rott. Equivorticity lines and the decay rate of translational velocity and circulation of the half‐plane are presented, together with the diverging paths of the vortex pair.