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Two-Dimensional Unsteady Analysis of Fluid Forces on a Whirling Centrifugal Impeller in a Volute

Tsujimoto, Y. and Acosta, A. J. and Brennen, C. E. (1984) Two-Dimensional Unsteady Analysis of Fluid Forces on a Whirling Centrifugal Impeller in a Volute. In: Rotordynamic instability problems in high-performance turbomachinery: proceedings of a workshop held at Texas A&M University, May 28-30, 1984. NASA Conference Publication. No.CP-2338. National Aeronautics and Space Administration , Washington, DC, USA, pp. 161-172. http://resolver.caltech.edu/CaltechAUTHORS:TSUriphpt84

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Abstract

Destabilizing fluid forces on a whirling centrifugal impeller rotating in a volute have been observed (Ref. 1). A quasisteady analysis neglecting shed vorticity (Ref. 2) or an unsteady analysis without a volute (Ref. 3) does not predict the existence of such destabilizing fluid forces on a whirling impeller. The present report is intended to take into account the effects of a volute and the shed vorticity. We treat cases when an impeller with an infinite number of vanes rotates with a constant velocity [omega] and its center whirls with a constant eccentric radius {epsilon] and a constant whirling velocity [omega].


Item Type:Book Section
Additional Information:Partial support by the Yamada Space Foundation, Japan and the National Aeronautics and Space Administration under contract NAS8-33108.
Record Number:CaltechAUTHORS:TSUriphpt84
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:TSUriphpt84
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:223
Collection:CaltechAUTHORS
Deposited By: Christopher Brennen
Deposited On:14 Dec 2004
Last Modified:26 Dec 2012 08:39

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