Complex Korteweg–de Vries equation: A deeper theory of shallow water waves

نویسندگان

چکیده

Using Levi-Civita's theory of ideal fluids, we derive the complex Korteweg-de Vries (KdV) equation, describing velocity a shallow fluid up to first order. We use perturbation theory, and long wave, slowly varying approximations for water. The KdV equation describes nontrivial dynamics all water particles from surface bottom layer. A crucial new step made in our work is proof that natural consequence wave elevation described by real equation. approach fluids thus more fundamental than one based on demonstrate how it allows direct calculation particle trajectories at any point fluid, these results agree well with numerical simulations other authors.

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ژورنال

عنوان ژورنال: Physical review

سال: 2021

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physreve.103.022216