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

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Title Two-Dimensional Unsteady Analysis of Fluid Forces on a Whirling Centrifugal Impeller in a Volute
 
Creator Tsujimoto, Y.
Acosta, A. J.
Brennen, C. E.
 
Subject Caltech Library Services
 
Description 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].
 
Publisher National Aeronautics and Space Administration
 
Date 1984-05
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Identifier http://authors.library.caltech.edu/223/1/TSU063.pdf
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 <http://resolver.caltech.edu/CaltechAUTHORS:TSUriphpt84>
 
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http://authors.library.caltech.edu/223/