Numerical Simulation and Experiment of Tubular Pump Device Model

The tubular pump device model including rotor, stator and inlet and outlet passages was simulated based on SIMPLEC arithmetic and standard k-¿ RNG turbulence model. The match of rotor and stator in tubular pump was optimized. The numerical results show that the device model has a steady flow field and high efficiency when the distance between rotor and stator is 0.11D₂. With the distance increasing or decreasing, vortex zone appears near the vane exit, which results in unsteady flow field and efficiency decrease. Streamlines show that the remaining circulation still exists at stator outlet with spiral flow pattern. The optimized device model was manufactured and tested. The test results show that the efficiency of the optimized device model reaches 79.05% at blade adjustable angle of -2°, which could meet the design requirements.