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Rotordynamic Forces in Cavitating Inducers

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Title Rotordynamic Forces in Cavitating Inducers
 
Creator Bhattacharyya, A.
Acosta, A. J.
Brennen, C. E.
Caughey, T. K.
 
Subject Caltech Library Services
 
Description This paper reports an experimental investigation of rotordynamic forces in a whirling axial flow inducer under the influence of cavitation at various flow coefficients. The results show the occurrence of large destabilizing peaks in the force tagential to the whirl orbit for positive whirl frequency ratios. The magnitude of the destabilizing forces increased with a decrease in cavitation number and flow coefficient. The rotordynamic data obtained do not exhibit quadratic functional behavior normally assumed in many rotordynamic models. Consequently, conventional generalized stiffness, damping, and intertia matrices cannot be determined for the inducer. The results demonstrate the complexity of rotordynamic forces and their consequences on stability of axial flow inducers.
 
Date 1997-12
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://authors.library.caltech.edu/39/1/BHA161.pdf
Bhattacharyya, A. and Acosta, A. J. and Brennen, C. E. and Caughey, T. K. (1997) Rotordynamic Forces in Cavitating Inducers. Journal of Fluids Engineering, 119 (4). pp. 768-774. ISSN 0098-2202. http://resolver.caltech.edu/CaltechAUTHORS:BHAjfe97 <http://resolver.caltech.edu/CaltechAUTHORS:BHAjfe97>
 
Relation http://resolver.caltech.edu/CaltechAUTHORS:BHAjfe97
http://authors.library.caltech.edu/39/