Analysis of the formation of an inner solution near the crest of steep surface waves of infinite depth
https://doi.org/10.26907/0021-3446-2024-12-94-100
Abstract
Surface periodic waves of infinite depth are investigated. The boundary value problem is formulated in the parametric plane with respect to the Zhukovsky function. By making use of the discrete Fourier transform, the problem is reduced to a finite system of nonlinear transcendental equations. It is shown that with an increase in the steepness of the waves, an inner solution is formed near the crest, and under the corresponding scaling of the sought function this solution is independent of the steepness. It is shown that the numerical reproduction of the inner solution is a key factor for accurate calculations of the almost-highest gravity waves.
About the Authors
D. V. MaklakovRussian Federation
Dmitri Vladimirovich Maklakov
18 Kremlyevskaya str., Kazan, 420008
R. V. Kazantsev
Russian Federation
Ramzan Valeryevich Kazantsev
18 Kremlyevskaya str., Kazan, 420008
References
1. Stokes G.G. On the Theory of Oscillatory Waves, Trans. Camb. Phil. Soc. 8, 441–455 (1847).
2. Longuet-Higgins M.S., Fox M.J.H. Theory of the almost-highest wave: the inner solution, J. Fluid Mech. 80 (4), 721–741 (1977).
3. Longuet-Higgins M.S., Fox M.J.H. Theory of the almost-highest wave, P. 2, Matching and analytical extension, J. Fluid Mech. 85 (4), 769–786 (1978).
4. Maklakov D.V. Almost-highest gravity waves on water of finite depth, Euro. J. Appl. Math. 13 (1), 67–93 (2002).
5. Гуревич М.И. Теория струй идеальной жидкости, 2-е изд. (Наука, М., 1979).
6. Levi-Civita T. D´etermination rigoureuse des ondes permanentes d’ampleur finie, Math. Ann. 93 (1), 264–314 (1925).
7. Lushnikov P.M., Dyachenko S.A., Silantyev D.A. New conformal mapping for adaptive resolving of the complex singularities of Stokes wave, Proc. R. Soc. Lond. A 473, 20170198 (2017).
Review
For citations:
Maklakov D.V., Kazantsev R.V. Analysis of the formation of an inner solution near the crest of steep surface waves of infinite depth. Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika. 2024;(12):94-100. (In Russ.) https://doi.org/10.26907/0021-3446-2024-12-94-100