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This article is cited in 6 scientific papers (total in 6 papers)
METHODOLOGICAL NOTES
On the relation between Stokes drift and the Gerstner wave
A. A. Abrashkina, E. N. Pelinovskyb a National Research University Higher School of Economics, Nizhny Novgorod Branch
b Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod
Abstract:
We discuss the properties of two-dimensional, nonlinear, potential, and vortex waves on the surface of an ideal liquid of infinite depth. It is shown that in the quadratic order in the amplitude, the vorticity of the Gerstner wave is equal in magnitude to and different in sign from that of the Stokes drift current in a surface layer. This allows a classic Stokes wave obtained in the framework of potential theory to be interpreted as a superposition of the Gerstner wave and Stokes drift. It is proposed that the nonlinearity coefficient in the nonlinear Shrödinger equation can be physically interpreted as the Doppler frequency shift along the vertically averaged Stokes drift current.
Received: February 20, 2017 Accepted: March 9, 2017
Citation:
A. A. Abrashkin, E. N. Pelinovsky, “On the relation between Stokes drift and the Gerstner wave”, UFN, 188:3 (2018), 329–334; Phys. Usp., 61:3 (2018), 307–312
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https://www.mathnet.ru/eng/ufn5944 https://www.mathnet.ru/eng/ufn/v188/i3/p329
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Abstract page: | 408 | Full-text PDF : | 73 | References: | 38 | First page: | 5 |
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