An experimental study on near-orthogonal wave-current interaction over smooth and uniform fixed roughness beds
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- 作者：Kian Yew Lima ; dprlky@nus.edu.sg" class="auth_mail" title="E-mail the corresponding author ; Ole Secher Madsenb ; osm@mit.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Wave&ndash ; current interaction ; Boundary layer flow ; Bottom roughness ; Grant&ndash ; Madsen model
- 刊名：Coastal Engineering
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：116
- 期：Complete
- 页码：258-274
- 全文大小：1894 K
文摘
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Experiments in a 3D flow basin on near-orthogonal wave-current flows over smooth and uniform fixed roughness beds.
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Drastic transformation of wave-induced mass transport profiles after the addition of turbulent currents.
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Roughness estimation with smooth turbulent equation if the laminar wave boundary layer is within current viscous sublayer.
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Grant-Madsen model over-accounts the influence of waves on near-orthogonal currents; correction scheme has been proposed.
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Near-bottom flow veers from the mainstream direction, which can be attributed to turbulence asymmetry and parasitic waves.
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Contamination of log-profile analysis by wave-induced mass transport flow is observed for 60° and 120° wave-current flows.