MULTI-FRACTION SEDIMENT TRANSPORT MODELLING IN MIKE 3 FM

The present study investigates the experimental results of the MUSA project flume laboratory experiments concerning phase 1D of the scope of work. It aims to represent the laboratory conditions through a numerical flume established in MIKE Powered by DHI software. Additionally, a new approach to combining the sand-gravel model with the mud transport model is tested. The model predictions of suspended sediment concentration are within a factor of 2 to 5 for both the sand and mud fractions when compared to the laboratory measurements. Thus, the new combined mud and sand-gravel transport model is deemed able to represent the dynamics of the sand and fines fractions in a sand-mud mixed bed under combined waves and currents action.