Two‐Dimensional Model of Mud Transport

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Abstract
A two‐dimensional‐in‐plan finite difference model is presented which models the transport of well mixed cohesive sediments in estuaries and coastal waters. A description of each of the physical processes incorporated in the model is given. An erosion mechanism is not included explicitly because of the difficulties involved in a realistic formulation. Instead, areas of net deposition throughout a tidal cycle are identified, and rates of mud deposition within these areas are predicted. Two applications of the model to siltation studies are presented, involving different modes of operation of the model. In each case field data in the form of bed core samples were available, so that the models could be both verified and calibrated. Under these circumstances, the model can be used to make useful engineering predictions such as projected dredging requirements in estuaries and ports.

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