In this paper, the k-ω SST (Shear Stress Transport) turbulence model is employed to study effect of flow rate on regular patterns pressure load distribution characteristics helico-axial pump impeller blade surface. The results show that all curves surface at different heights under rates a similar trend increasing first and decreasing then. At inlet area, with increase rate, range negative in a...

To control the temperature of electric motor, suction gas is introduced flowing through motor in hermetic scroll compressors. For high-speed compressors, this flow resistance high, which results decreasing efficiency. In paper, spiral channels were designed inside rotor to decrease and increase refrigerant rate compressor. Simulation was carried out. Two structure straight intake brought into s...