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Much is known about the behaviour of the individual sediment fractions, but the knowledge and understanding of sand-mud interaction remains limited, as do the available tools and models to accurately predict the bed evolution and sediment transport rates in sand-mud areas. Existing models, like the ones by Van Ledden (2003), Soulsby & Clarke (2005) or Van Rijn (2007) have only limitedly been verified with observations due to a lack of good quality observational data. Also, none of the available approaches cover the complete spectrum of sand-mud interaction, which includes settling, erosion processes, and bed shear stresses due to waves and currents, and the bed shear stress. Therefore, in practice, sand- and mud fractions are often treated separately. This decoupled approach limits the predictive capacity of numerical models, and therefore the understanding of impact of human intervention such as deepening of channels and port construction on maintenance dredging volumes and other morphological changes.
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The project started in May 2020 and will end at the end in january of 2023.At
the moment we are finalizing the literature analysis and started with the first phase of laboratory experimentsIn the current stage of the project (September 2021), flume experiments are carried out in the laboratory of WaterProof.
