It was assumed that the solid particles do not influence the flow field of the water (one-way coupling). (1986) setup a three-dimensional model that included all slurry pump components. Although the method was limited to two-dimensional pump casings and inviscid flows, it showed reasonable agreement with experimental results. (1985) and Roco and Addie (1987) used twoway coupling between the solid particles and the fluid. ![]() The flow field obtained from potential flow theory was used to calculate the particle velocities from a force or momentum balance in the early numerical models. The main objective of this research is to verify and validate the numerical model capable of estimating the sediment erosion wear due to slurry flow on the impeller blades of a centrifugal dredge pump by using Computational Fluid Dynamics (CFD). This will help to increase the efficiency of the dredging process. Another advantage of a reliable erosion estimation is the possibility to set up maintenance plans that show in detail when certain components have to be replaced. This would allow reducing the maintenance costs of centrifugal dredge pumps. ![]() during the design phase, the components can be altered such that the pump is more resistant to erosion wear (Krüger et al., 2010). When the erosion rate of the pump components can be estimated in advance, i.e. Material loss of the pump due to the flow is mainly caused by two ways: erosion due to solid particles in a flow (Figure 1) and erosion due to cavitation. Centrifugal dredge pumps are used to continuously transport a mixture of soil and water through a pipeline.
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