Flow measurement in helical inducer and estimate of fluctuating blade force in cavitation surge phenomena

Akinori Furukawa, Koichi Ishizaka, Satoshi Watanabe

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

An attachment of inducer is a powerful method to improve the cavitation performance of a turbo-pump. Cavitation surge phenomena, occuring under the severe suction pressure at a partial flow rate, is focussed in the present paper. Flow measurements were carried out at the inlet and outlet sections of a flat-plate helical inducer with the solidity of 2.0 and tip blade angle of 11° by using a total-head yaw-meter with a phase locked sampling method in one period of the shaft rotation or the cavitation oscillation. Time variation of the flow distributions during the oscillation is clarified with observed cavitation behaviors. After these results are compared with those in conditions just before and after the oscillations, the fluctuating blade forces are estimated from the blade to blade distributions of casing wall pressures measured in these conditions.

Original languageEnglish
Pages (from-to)672-677
Number of pages6
JournalJSME International Journal, Series B: Fluids and Thermal Engineering
Volume45
Issue number3
DOIs
Publication statusPublished - Aug 1 2002

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Fluid Flow and Transfer Processes

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