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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, JR; Thomas, GA; Renilson, MR; (2018) An investigation into the effect of pressure source parameters and water depth on the wake wash wave generated by moving pressure source. Scientia Iranica , 25 (4) pp. 2162-2174. 10.24200/SCI.2017.4510. Green open access

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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

Type: Article
Title: An investigation into the effect of pressure source parameters and water depth on the wake wash wave generated by moving pressure source
Open access status: An open access version is available from UCL Discovery
DOI: 10.24200/SCI.2017.4510
Publisher version: http://dx.doi.org/10.24200/SCI.2017.4510
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Wake wash, wave propagation, Computational Fluid dynamics, Towing Tank, Pressure Source
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10024843
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