Point vortex description of drift wave vortices: Dynamics and transport
Point vortex description of drift wave vortices: Dynamics and transport
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漂移波涡旋的点涡描述：动力学和传输
DOI：
10.1063/1.859756
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
W. Horton
中科院分区：
文献类型：
--
作者：
M. Kono;W. Horton
基于Hasegawa-Mima方程建立了漂移波涡的点涡描述，以研究涡间相互作用的基本过程以及涡扩散等统计特性。恢复了数值实验中已知的漂移波涡的动力学性质。此外，Horton [Phys. Fluids B 31，524（1989）]基于数值模拟给出的涡扩散的经验表达式被示出为解析地获得。提出了由点涡相互作用力的短程性质引起的各种现象。
A point vortex description for drift wave vortices is formulated based on the Hasegawa–Mima equation to study elementary processes for the interactions of vortices as well as statistical properties like vortex diffusion. Dynamical properties of drift wave vortices known by numerical experiments are recovered. Furthermore, an empirical expression for the vortex diffusion given by Horton [Phys. Fluids B 31, 524 (1989)] based on numerical simulations is shown to be analytically obtained. A variety of phenomena arising from the short‐range nature of the interaction force of point vortices are suggested.