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Oscillatory flow tunnel measurements of velocities and fluxes for sands in oscillatory sheet flow conditions are presented. The experiments involved a range of well-sorted and graded sands in two asymmetric flows. Velocities were measured using an ultrasonic velocity profiler (UVP) capable of measuring deep within the sheet flow layer. Velocity profiles are found to be similar for the same flow but...
In wave-generated sheet flow conditions, oscillatory near-bed flow is large, ripples are washed out and sand is mainly transported in a thin layer, a few centimetres thick, close to and below the no-flow bed level. New experiments in the Aberdeen Oscillatory Flow Tunnel have produced a comprehensive dataset of transport processes for well-sorted and graded sands in large-scale sinusoidal and asymmetric...
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