Abstract

Penetration of a vorticity lattice formed by waves propagating on the surface at an angle to each other into the bulk of a liquid is studied experimentally. It is shown that along with the Stokes drift it is necessary to regard nonlinear wave interaction in order to explain experimental time dependences of average vorticity. Vorticity distribution over the depth of a liquid is described by a sum of two exponents considering the contribution of both mechanisms. It is determined that formation of large-scale vortex flows leads to deformation of a vortex lattice and a decrease in an average value of the amplitude of lattice vorticity as a result of its drift.

中文翻译：

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涡旋晶格渗透到液体本体中

摘要

实验研究了由在彼此成一定角度的表面上传播的波形成的涡旋晶格渗透到液体中的情况。结果表明，随着斯托克斯漂移，有必要考虑非线性波相互作用，以解释平均涡度的实验时间依赖性。考虑到两种机理的贡献，由两个指数的总和来描述液体深度上的涡度分布。可以确定的是，形成大尺度的涡流会导致涡旋晶格变形，并且由于其漂移而导致晶格涡度振幅平均值降低。