Hydraulics and Blading of Centrifugal Pump Impellers: A Systematic Review and Application

Hydraulics and Blading of Centrifugal Pump Impellers: A Systematic Review and Application To develop a solid hydraulic designing model, a systematic survey of the existing hydraulic designing models and the blading layout techniques for centrifugal pump impellers is performed. Firstly, a hydraulic designing technique based on blade loading model is put forth using the Euler pump and turbine equation and the Bernoulli equation under the rotating reference frame. Secondly, a brief introduction on the conformal mapping method is presented. Thirdly, a blading layout technique is performed by the transformation between polar and rectangular plane coordinates. At last, the hydraulic designing model and the blading layout techniques are integrated into a CAD based designing system. The system is proved flexible and robust during the practical designing process. Keywords Centrifugal pumps  Hydraulic designing  Rotating reference frame  Blade loading model  Conformal mapping -1 List of symbols W Relative velocity on the suction side (m s ) b Blade inlet width (mm) b Blade inlet angle () 1 1 b Blade outlet width (mm) b Blade outlet angle () 2 2 -1 D Impeller suction eye diameter (mm) x Angular velocity of impeller (rad s ) -3 D Impeller wheel diameter (mm) q Fluid density (Kg m ) -2 g Gravitational http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Iranian Journal of Science and Technology, Transactions of Mechanical Engineering Springer Journals

Hydraulics and Blading of Centrifugal Pump Impellers: A Systematic Review and Application

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Shiraz University
Subject
Engineering; Mechanical Engineering
ISSN
2228-6187
eISSN
2364-1835
D.O.I.
10.1007/s40997-018-0203-8
Publisher site
See Article on Publisher Site

Abstract

To develop a solid hydraulic designing model, a systematic survey of the existing hydraulic designing models and the blading layout techniques for centrifugal pump impellers is performed. Firstly, a hydraulic designing technique based on blade loading model is put forth using the Euler pump and turbine equation and the Bernoulli equation under the rotating reference frame. Secondly, a brief introduction on the conformal mapping method is presented. Thirdly, a blading layout technique is performed by the transformation between polar and rectangular plane coordinates. At last, the hydraulic designing model and the blading layout techniques are integrated into a CAD based designing system. The system is proved flexible and robust during the practical designing process. Keywords Centrifugal pumps  Hydraulic designing  Rotating reference frame  Blade loading model  Conformal mapping -1 List of symbols W Relative velocity on the suction side (m s ) b Blade inlet width (mm) b Blade inlet angle () 1 1 b Blade outlet width (mm) b Blade outlet angle () 2 2 -1 D Impeller suction eye diameter (mm) x Angular velocity of impeller (rad s ) -3 D Impeller wheel diameter (mm) q Fluid density (Kg m ) -2 g Gravitational

Journal

Iranian Journal of Science and Technology, Transactions of Mechanical EngineeringSpringer Journals

Published: May 30, 2018

References

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