Abstract

Investigation of sediment transport rate induced by tidal current and wave-current interaction are very important to explain the sediment transport mechanics, sedimentation and erosion process, and also the coastal morphological changes. The understanding of sediment transport caused by wave and current interaction in detail should be known well in order to predict it, accurately. This paper aim to investigate the characteristics of sediment transport rate due to tidal current and wave-currents interaction motion in the the channel water intake by using numerical modelling. The performance of the modelling results indicated by the Root Mean Square (RMSE) with error of 0.5 % by means validating the model water surface elevation from the fields measurement data and the modelling results. The result showed that sediment transport caused by wave-current interaction give more the amount of total sediment transport than caused by tidal current only. It can be concluded that the wave has dominant effect than tidal current to conduct sedimentation and morphological change in the canal water intake.

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