Application Research of Dynamic Grid Technology in Local Erosion of Water Conservancy and Hydropower Engineering
In order to predict the depth and shape of local erosion in water conservancy and hydropower projects,this paper uses ANSYS Fluent dynamic grid technology,spring smoothing method and local reconstruction method,combined with sand slip model to simulate the collapse process of bed sediment.Three dimensional numerical simulations are conducted on the local erosion of cylindrical bridge piers and downstream of gate dams in water conservancy and hydropower projects.And the maximum depth and shape of local erosion pits calculated by numerical simulation are compared with the experimental values of physical models,and it was found that the two are in good agreement.It can be considered that the dynamic grid technology can be successfully applied to predict the depth and shape of local erosion in water conservancy and hydropower projects.
dynamic grid technologylocal erosionthree dimensional numerical simulationsandslide model
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