Quasi-3D inviscid flow analysis of contra-rotating axial flow pump

Yin Chun Cao, Akinori Furukawa, Satoshi Watanabe

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Contra-rotating axial flow rotors, which have been used as a ship propeller and a fan, might be prospective as a pump if higher performance and wider operation range would be obtained than the conventional type of axial flow pumps. Pumps of contra-rotating and conventional types were designed under the condition of the same rotor specific speed, Ns= 1500, by using a conventional method based on empirical data. In the present paper, before starting the experimental works, the pump charac-teristics and flow behaviors of both types are examined numerically by using a quasi-3D inviscid flow analysis, consisting of a streamline curva-ture method in the meridional flow and a blade surface singularity method in blade to blade flow. The selected design parameters for contra-rotating rotor blades are discussed from the calculated results. Then the advantages of using the contra-rotating type are clarified by comparing the pump performance and flow distributions around the blades with those of the conventio al type.

Original languageEnglish
JournalMemoirs of the Graduate School of Engineering, Kyushu University
Issue number4
Publication statusPublished - 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Energy
  • Process Chemistry and Technology
  • Atmospheric Science
  • Management of Technology and Innovation
  • General Earth and Planetary Sciences


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