Instituto de Ciencias de la Ingeniería, Universidad de O'Higgins, Av. Libertador Bernardo O'Higgins 611, Rancagua, Chile.
Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Avenida Blanco Encalada 2008, Santiago, Chile.
Phys Rev E. 2018 Apr;97(4-1):043101. doi: 10.1103/PhysRevE.97.043101.
We report on the generation of an intermittent wave field driven by a horizontally moving wave maker interacting with Faraday waves. The spectrum of the local gravitocapillary surface wave fluctuations displays a power law in frequency for a wide range of forcing parameters. We compute the probability density function of the local surface height increments, which show that they change strongly across time scales. The structure functions of these increments are shown to display power laws as a function of the time lag, with exponents that are nonlinear functions of the order of the structure function. We argue that the origin of this scale-invariant intermittent spectrum is the Faraday wave pattern breakup due to its advection by the propagating gravity waves. Finally, some interpretations are proposed to explain the appearance of this intermittent spectrum.
我们报告了由与法拉第波相互作用的水平运动波源驱动的间歇波场的产生。局部重力毛细表面波涨落的频谱在很宽的激励参数范围内呈现出幂律形式。我们计算了局部表面高度增量的概率密度函数，结果表明它们在时间尺度上变化很大。这些增量的结构函数被证明作为时间滞后的函数显示出幂律关系，其指数是结构函数阶数的非线性函数。我们认为，这种标度不变的间歇谱的起源是由于传播重力波的对流导致法拉第波模式破裂。最后，提出了一些解释来解释这种间歇谱的出现。
