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A Parametric Evaluation of the Effect of Inlet Swirl on the Rotordynamic Forces Generated by Discharge-to-Suction Leakage Flows in Shrouded Centrifugal Pumps

Uy, Robert V. and Bircumshaw, Brian L. and Brennen, Christopher E. (1997) A Parametric Evaluation of the Effect of Inlet Swirl on the Rotordynamic Forces Generated by Discharge-to-Suction Leakage Flows in Shrouded Centrifugal Pumps. In: 1997 ASME Fluids Engineering Division Summer Meeting, 22-26 June 1997, Vancouver, British Columbia, Canada. http://resolver.caltech.edu/CaltechAUTHORS:UYRfedsm97

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Abstract

Unsteady forces generated by the fluid flow through the impeller leakage path of a centrifugal pump were investigated. The effect of leakage path inlet (pump discharge) swirl on the rotordynamic forces was examined for various ratios of fluid tangential velocity to impeller tip speed. It was observed that changing the inlet swirl velocity does not appear to significantly affect the measured forces for a given leakage flow coefficient. A bulk flow numerical model was found to predict the same general result. The model agreed with experimental data for small values of the leakage flow coefficient.


Item Type:Conference or Workshop Item (Paper)
Additional Information:The authors wish to thank the Advanced Rotating Machinery group of Rocketdyne division of Rockwell Aerospace for financial support and assistance.
Record Number:CaltechAUTHORS:UYRfedsm97
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:UYRfedsm97
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:157
Collection:CaltechAUTHORS
Deposited By: Christopher Brennen
Deposited On:09 Nov 2004
Last Modified:26 Dec 2012 08:39

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