The Rotordynamic Forces on a Centrifugal Pump Impeller in the Presence of Cavitation
CaltechAUTHORS
View Archive Info| Field | Value | |
| Title |
The Rotordynamic Forces on a Centrifugal Pump Impeller in the Presence of Cavitation
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| Creator |
Franz, R.
Acosta, A. J. Brennen, C. E. Caughey, T. K. |
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| Subject |
Caltech Library Services
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| Description |
An experiment in forced vibration was conducted to study the fluid-induced rotordynamic force on an impeller whirling along a trajectory eccentric to its undeflected position. The prescribed whirl trajectory of the rotor is a circular orbit of a fixed radius. The force measured is a combination of a steady radial force due to volute asymmetries and an unsteady force due to the eccentric motion of the rotor. These measurements have been conducted over a full range of whirl/impeller speed ratios at different flow coefficients for various turbomachines. A destabilizing force was observed over a region of positive whirl ratio. The range of flow conditions examined for a centrifugal impeller in a spiral volute has been enlarged to include cavitation. Compared to the non-cavitating condition, cavitation corresponding to a head loss of three percent did not have a significant effect upon the unsteady force.
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| Publisher |
American Society of Mechanical Engineers
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| Contributor |
Cooper, P.
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| Date |
1989-07
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| Type |
Book Section
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://authors.library.caltech.edu/210/1/FRA096.pdf
Franz, R. and Acosta, A. J. and Brennen, C. E. and Caughey, T. K. (1989) The Rotordynamic Forces on a Centrifugal Pump Impeller in the Presence of Cavitation. In: Pumping Machinery, 1989 : presented at the Third Joint ASCE/ASME Mechanics Conference, University of California, San Diego, La Jolla, California, July 9-12, 1989 / sponsored by the Fluids Engineering Division, ASME. Fluids Engineering Division. Vol.FED-81. No.81. American Society of Mechanical Engineers , New York, pp. 205-211. ISBN 0791803449 http://resolver.caltech.edu/CaltechAUTHORS:FRAasmespm89 <http://resolver.caltech.edu/CaltechAUTHORS:FRAasmespm89> |
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| Relation |
http://resolver.caltech.edu/CaltechAUTHORS:FRAasmespm89
http://authors.library.caltech.edu/210/ |
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