We report numerical simulations of surface gravity waves forced at small scale and the subsequent inverse cascade of wave action. We combine the spectral approach to simulating weakly nonlinear waves with the capabilities of modern graphics processing units to reach unprecedented scale separation between the forcing and domain scales. The resulting broad inertial range allows for an unambiguous confirmation of the theoretical prediction for the spectrum in the inverse cascade regime, both in terms of spectral index and dependence of the spectral level on the action flux.

中文翻译：

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表面重力波作用逆级联的数值验证

我们报告了小尺度表面重力波的数值模拟以及随后的波浪作用的逆级联。我们将模拟弱非线性波的谱方法与现代图形处理单元的功能相结合，以在力尺度和域尺度之间实现前所未有的尺度分离。由此产生的宽惯性范围可以在光谱指数和光谱水平对作用通量的依赖性方面明确确认逆级联状态下光谱的理论预测。