Abstract: A k-e-Ap model is used to simulate two-phase turbulent flow, and pressure-correction equation is achieved to couple the continuity equation and the momentum equations according to SIMPLEC. Thus time-averaged governing equations of which are developed. On the basis of the GEMCHIP algorithm, a program to calculate the internal flow within the pump impellers is designed, and the calculating results are displayed into some figures. The simulated results exhibit: there exist a jet-wake structure around the shroud-suction side area, and a relative velocity slip between the solid and liquid which de-creases gradually along the passage.

Key words: Non-clogging pump, Numerical simulation, Turbulence flow, Two-phase flow