Numerical Simulation of Floating Sluice Resistance Characteristics during Pulling Process

Floating sluice is a kind of friendly entironment hydraulic control structure. It's applying can solve effectively contradiction between river flood prevention and navigation. In this paper, a three-dimension numerical flow model was established based on unstructured dynamic mesh technical. The model was predigested reasonably after the main factor of resistance was analyzed during pulling process and was validated with results of hydraulic model experiment. The relation between resistance per unit tonnage of floating sluice and rotation angle was obtained during opening and closing process of floating sluice. The influence on resistance of draft, rotation speed of floating sluice and flow velocity was analyzed and the method to determine the dynamic cabin capacity was put forward also.