Time-dependent sediment transport phenomena in oscillatory boundary-layer flow under sheet flow conditions

The primary aim of this experimental study, carried out in the Large Oscillating Water Tunnel (LOWT) of Delft Hydraulics, is to obtain a better understanding of the time-dependent near-bed transport processes and to collect data for the verification and further development of this type of boundary layer models. Intrawave measurements are carried out of flow velocities and sediment concentrations in the boundary layer in plane bed (sheet flow) conditions. Sediment concentrations are measured with transverse suction (wave-averaged), an optical technique (OPCON), an acoustic technique (AZTM) and with an electro-resitance technique (CCM). Flow velocities are measured with laser-doppler velocimetry (LDFM) and AZTM