The 6th hydroelectric set of the Jiangxia Tide Experimental Hydropower Station in Zhejiang province belongs to double-acting light bulb tubular turbine and water pump set.

Numerical simulation of characteristics of tubular pumping devices;

Then, the 3D viscous turbulent flow-field within bidirectional tubular pump arrangement with silo was simulated on different operating conditions.

To optimize the hydraulic design of forebay(outlet sump)-watercourse of pumping station, based on the solution of the Reynolds average N-S equations and the standard turbulent model, numerical simulation on three dimentional incompressible turbulent flow-field of the forebay(outlet sump)-watercourse of pumping station with bidirectional tubular pump has been carried out by pressure-velo.

In this paper,concerning the working characteristics of a certain model of diving turbine pump,the problems of original design were analyzed firstly,then the forces thrown on the linking sect were also analyzed,inanly a new conceptual model was built and it was analyzed by FEA,so a new design of the linking sect structure was succsessfully completed,and it shortens the design cycle and saves cost.