arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.00940physics.flu-dynmath-phmath.APmath.MP
收藏

水波在表面变量中的弱形式

A Weak Formulation of Water Waves in Surface Variables

KL Oliveras

摘要:

在这个简短的说明中,我们得到了一个系统的两个非局部方程的水波问题的工作[AFM06]。具体地说,我们考虑一个流体的一维自由表面的无旋流体都有,没有,表面张力。我们表明,这些方程可以是有用的,在各种接口的边界数据之间的直接映射,并考虑各种渐近制度。最后,对于周期性行波解,我们导出了一个新的单方程,该方程是无导数的,并且有可能简化求解解的渐近展开的过程,以及减少计算时的数值误差。

英文摘要:

In this short note, we derive a system of two nonlocal equations for the water-wave problem following the work of [AFM06]. Specifically, we consider a fluid with a one-dimensional free surface for an irrotational fluid both with, and without, surface tension. We show that these equations can be useful for deriving direct maps between boundary data at the various interfaces and consider various asymptotic regimes. Finally, for periodic traveling wave solutions, we derive a new single-equation that is derivative free and has the potential to simplify the process of finding asymyptotic expansions of the solutions as well as reduce numerical errors when solving computationally.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑