Vortical freak waves in water under external pressure action.
Vortical freak waves in water under external pressure action.
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DOI：
10.1103/physrevlett.110.014501
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发表时间：
2013-01
影响因子：
8.6
通讯作者：
A. Abrashkin;A. Soloviev
中科院分区：
文献类型：
--
作者：
A. Abrashkin;A. Soloviev
提出了一种水中异常波形成的涡旋模型。用自由表面上的非均匀压力来模拟风的作用。用理想无粘流体在拉格朗日变量下的二维流体动力学方程的精确解来描述流体的运动。流体粒子以不同半径的圆旋转。该模型描述了格斯特纳波场中异常波的出现。讨论了波浪的物理参数和所提出方案的可行性。
A vortical model for freak wave formation in water is presented. The wind action is simulated by nonuniform pressure on the free surface. The motion of the fluid is described by an exact solution of 2D hydrodynamic equations for ideal inviscid fluid in Lagrangian variables. Fluid particles rotate in circles of different radius. The model describes the appearance of a freak wave in the field of the Gerstner wave. The physical parameters of the wave and feasibility of the proposed scenario are discussed.