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Analysis of Pressure Loading on Inducer Blades

[+] Author Affiliations
Yuzhen Wu, Hao Huang

National Engineering Research Center for Special Pump and Valve, Beijing, China

Paper No. AJK2011-06012, pp. 53-59; 7 pages
doi:10.1115/AJK2011-06012
From:
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
  • Hamamatsu, Japan, July 24–29, 2011
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4440-3
  • Copyright © 2011 by JSME

abstract

A typical inducer has a lower breakdown NPSH (net positive suction head when loss of headrise occurs) than that of centrifugal impeller. It is an axial impeller with special design features that allow pump operation under cavitation or partial cavitation condition. The design principle of inducer is to obtain appropriate head rise with low power consumption and good anti-cavitation capability. The failures of inducer are mainly caused by cavitation, but always involve other factors. Through numerical simulation and experimental analysis, the pressure loading on blades that affect the bending strength of blades is obtained. This paper studies pressure loading on inducer blades of the study object at steady and unsteady state.

Copyright © 2011 by JSME
Topics: Pressure , Blades

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