Abstract：Vane pumps convert mechanical energy into fluid energy with the impeller being the key component. This paper designed a flow pump impeller using iterative solutions of direct and inverse problems. The velocity moment distribution along the axial streamline is controlled by a quartic function determined by the midpoint and outlet slope of velocity moment. Analyses of the influence of the velocity moment distribution on the impeller performance show that increasing the midpoint of velocity moment increases the load from the blade inlet to the middle which improves the pump work. The midpoint of velocity moment mainly affects the relative velocity distribution near the blade tip and the axial velocity in the middle of the impeller. The design was evaluated in energy and cavitation experiments. The high-efficiency operating range of the pump is flat and wide with a highest efficiency of 82.17%. The cavitation specific speed is 1 289.
韩亚东, 谭磊, 刘亚斌. 基于可控载荷的混流泵叶轮设计及试验研究[J]. 清华大学学报（自然科学版）, 2022, 62(12): 1930-1937.
HAN Yadong, TAN Lei, LIU Yabin. Mixed-flow pump impeller design based on the controllable blade load distribution. Journal of Tsinghua University(Science and Technology), 2022, 62(12): 1930-1937.
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2022, Vol. 62 
