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An investigation into the effect of pressure source parameters and water depth on the wake wash wave generated by moving pressure source

Javanmardi, M, Binns, J ORCID: 0000-0001-6892-0063, Thomas, G and Renilson, MR 2017 , 'An investigation into the effect of pressure source parameters and water depth on the wake wash wave generated by moving pressure source' , Scientia Iranica , pp. 1-36 , doi: 10.24200/SCI.2017.4510.

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Abstract

In this study the effect of moving pressure source and channel parameters on the generated waves in a channel was numerically investigated. Draught, angle of attack and profile shape were investigated as parameters of pressure source and water depth and blockage factor as channel parameters on wave height. Firstly, the chosen Computational Fluid Dynamics (CFD) approach was validated with the experimental data over a range of speed. Then the CFD study was conducted for further investigations. It was shown that that by enlarging draught, angle of attack and beam of the pressure source, the wave height generated will be increased. Channel study showed that it is possible to increase the wave height generated by shallowing water for a given speed as long as the depth Froude number is subcritical and the wave height generated is independent of water depth for supercritical depth Froude numbers. The blockage factor has more influence at supercritical Froude depth values, while at subcritical Froude values is negligible compare with water depth.

Item Type: Article
Authors/Creators:Javanmardi, M and Binns, J and Thomas, G and Renilson, MR
Keywords: wake wash, wave propagation, computational fluid dynamics, towing tank, pressure source
Journal or Publication Title: Scientia Iranica
Publisher: Sharif University
ISSN: 1026-3098
DOI / ID Number: 10.24200/SCI.2017.4510
Copyright Information:

Copyright 2017 Scientia Iranica

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