抄録
The vorticity-stream function formulation and moving overlapping meshes are applied to simulate the flow in the lobe pump. The stream function on rigid boundaries are determined by using the pressure single-valuedness and pressure gradient condition. As results, the pressure on the fluid machinery is given by using pressure gradient condition in the vorticity-stream function formulation. The present results show that these conditions are accurately satisfied, the feature of the discharge on the lobe pump is caught, and the flow is adequately simulated by these condition.
