A combined approach of inverse method and direct flow analysis is presented for the hydrodynamic design of gas-liquid two-phase flow rotodynamic pump impeller. The geometry of impeller blades is designed for a specified velocity torque distribution by treating the two-phase mixture as a homogeneous fluid under the design condition. The three-dimensional flow in the designed impeller is verified by direct turbulent flow analysis, and the design specification is further modified to optimize the flow distribution. A helical axial pump of high specific speed has been developed. To obtain a favorable pressure distribution the impeller blade was back-loaded at the hub side compared to the tip side. Experimental results demonstrate that the designed pump works in a wide flow rate range until the gas volume fraction increases to over 50% and its optimum hydraulic efficiency reaches to 44.0% when the gas volume fraction of two-phase flow is about 15.6%. The validity of design computation has been proved.
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March 2005
Technical Papers
Hydrodynamic Design of Rotodynamic Pump Impeller for Multiphase Pumping by Combined Approach of Inverse Design and CFD Analysis
Shuliang Cao,
Shuliang Cao
Professor
Department of Thermal Engineering,
Tsinghua University
, Beijing 100084, P. R. China
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Guoyi Peng,
Guoyi Peng
Assistant Professor
Department of Mechanical Systems Engineering,
Toyama Prefectural University
, 5180 Kurokawa, Kosugi-machi, Toyama 939-0398, Japan
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Zhiyi Yu
Zhiyi Yu
Doctoral Candidate
Department of Thermal Engineering,
Tsinghua University
, Beijing 100084, P. R. China
Search for other works by this author on:
Shuliang Cao
Professor
Department of Thermal Engineering,
Tsinghua University
, Beijing 100084, P. R. China
Guoyi Peng
Assistant Professor
Department of Mechanical Systems Engineering,
Toyama Prefectural University
, 5180 Kurokawa, Kosugi-machi, Toyama 939-0398, Japan
Zhiyi Yu
Doctoral Candidate
Department of Thermal Engineering,
Tsinghua University
, Beijing 100084, P. R. ChinaJ. Fluids Eng. Mar 2005, 127(2): 330-338 (9 pages)
Published Online: October 1, 2004
Article history
Received:
May 18, 2004
Revised:
October 1, 2004
Citation
Cao, S., Peng, G., and Yu, Z. (October 1, 2004). "Hydrodynamic Design of Rotodynamic Pump Impeller for Multiphase Pumping by Combined Approach of Inverse Design and CFD Analysis." ASME. J. Fluids Eng. March 2005; 127(2): 330–338. https://doi.org/10.1115/1.1881697
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