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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Effects of surface waves on turbulent currents
Effects of surface waves on turbulent currents
Author : NICOLETTA TAMBRONI, PAOLO BLONDEAUX & GIOVANNA VITTORI
ABSTRACT
The interaction between a propagating surface wave and a steady current is investigated by means of a simple model.
The wave propagates in the same direction of the current or against it. The amplitude of the wave is assumed to be
much smaller than its wavelength and the velocity oscillations induced by wave propagation to be of the same order of
magnitude as the depth averaged velocity due to the steady current. A perturbation approach is employed to determine
the flow field, which is expanded using the wave steepness as a small parameter. The hydrodynamic problems, which
are obtained at the different orders of approximation, are solved numerically by means of a finite difference approach
without the need to split the fluid domain in an inviscid core region and surface and bottom boundary layers. A
comparison between the theoretical results and the experimental measurements of different authors supports the model
findings.
File Size : 457,700 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 26/08/2015
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