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Title: Experimental study on flow kinematics and sediment transport under orthogonal wave-current interaction
Keywords: Wave-current interaction, Theoretical models, Sediment transport, Bed shear stress, Bed ripples geometry, Velocity profiles
Issue Date: 12-Jan-2007
Citation: M. PRADEEP CHAMINDA FERNANDO (2007-01-12). Experimental study on flow kinematics and sediment transport under orthogonal wave-current interaction. ScholarBank@NUS Repository.
Abstract: A laboratory experiment on wave-current orthogonal interaction was carried out in a wave basin. With the measurements of 3-D velocities, ripples geometry and sediment transport, the effects of waves on currents and influence of wave current orientation on interaction mechanisms were investigated. Theoretical models for wave-current flow at arbitrary angles are validated. Some modifications are introduced to these models to better predict orthogonal wave-current flow. A new theory is developed to describe wave-current flow at arbitrary angles under any flow regime and excellent agreement is found between this theory and laboratory and field wave-current measurements. For most of the past wave-current measurements, present model resulted the best prediction compared to other available theories. Present model can be applied under laboratory or on continental shelf under non eroded flow conditions or under typically stormy conditions of wave-current interaction to better understand the complex wave-current near bottom flow behaviors.
Appears in Collections:Ph.D Theses (Open)

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