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Rotordynamic Forces Generated by Discharge-to-Suction Leakage Flows in Centrifugal Pumps

Guinzburg, A. and Brennen, C. E. and Acosta, A. J. and Caughey, T. K. (1990) Rotordynamic Forces Generated by Discharge-to-Suction Leakage Flows in Centrifugal Pumps. In: Advanced Earth-to-Orbit Propulsion Technology, Huntsville, Alabama.

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This paper reviews the current state of knowledge of rotordynamic forces caused by the discharge-to-suction leakage flows in centrifugal pumps. The indications that these flows could contribute significantly to the rotordynamics motivated the fabrication of an experiment in which measurements of rotordynamic forces would be made on simulated leakage flows in which the flow rate, clearance, eccentricity and other parameters would be exercised in order to understand the phenomena. Sample data is presented and demonstrates substantial rotordynamic effects which could be potentially destabilizing. The rotordynamic forces appear to be inversely propertional to the clearance and change significant with the flow rate.

Item Type:Conference or Workshop Item (Paper)
Additional Information:The authors are grateful to F. Zhuang, A. Bhattachryya and F. Rahman for help with the experiemntal program. We would also like to thank NASA George Marshall Space Flight Center for support under Grant NAG8-118.
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Record Number:CaltechAUTHORS:GUIaetopt90
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102
Deposited By: Christopher Brennen
Deposited On:08 Oct 2004
Last Modified:02 Oct 2019 22:16

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