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Water waves for small surface tension: an approach via normal form

Published online by Cambridge University Press:  14 November 2011

Gérard Iooss
Affiliation:
Institut Non Lineaire de Nice, Université de Nice, Pare Valrose, 06108 Nice Cedex 2, France
Klaus Kirchgässner
Affiliation:
Department of Mathematics, University of Stuttgart, Pfaffenwaldring 57, 7000 Stuttgart, Germany

Synopsis

In this paper we determine the possible crest-forms of permanent waves of small amplitude which exist on the free surface of a two-dimensional fluid layer under the influence of gravity and surface tension when the Froude number is close to 1. The Bond number b, measuring surface tension, is assumed to satisfy b < ⅓. We find one-parameter families of periodic waves of two different types, quasiperiodic waves and solitary waves with oscillations at infinity. The existence of true solitary waves is established for a sequence of systems approximating the full Euler equations in every algebraic order of − 1.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1992

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