CaltechAUTHORS
  A Caltech Library Service

A Theoretical Study of Impeller and/or Vaneless Diffuser Attributed Rotating Stalls and their Effects on the Whirling Instability of a Centrifugal Impeller

Tsujimoto, Yoshinobu and Acosta, Allan J. and Brennen, Christopher E. (1986) A Theoretical Study of Impeller and/or Vaneless Diffuser Attributed Rotating Stalls and their Effects on the Whirling Instability of a Centrifugal Impeller. Japan Society of Mechanical Engineers. Journal, 52 (483). pp. 3747-3754. ISSN 0021-4728. http://resolver.caltech.edu/CaltechAUTHORS:TSUjjmes86

[img] PDF
See Usage Policy.

800Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:TSUjjmes86

Abstract

Fluid forces on a centrifugal impeller rotating and whirling in a vaneless diffuser are analysed on the assumption of a two-dimensional inviscid flow. It is assumed that the number of impeller vanes is infinitely large and that the loss in the impeller can be estimated from the steady hydraulic and incidence losses taking into account the delay time of the loss. Further, the pressure at the outlet of the diffuser is assumed to be constant. On these assumptions impeller and/or diffuser attributed rotating stalls are observed, and the effects of parameters affecting the stalls are discussed. It is found that both stalls may cause the whirling instability of a centrifugal impeller.


Item Type:Article
Additional Information:Article is in Japanese.
Subject Keywords:Unsteady Flow, Fluid Machine, Centrifugal Impeller, Whirling, Rotating Stall, Vaneless Diffuser
Record Number:CaltechAUTHORS:TSUjjmes86
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:TSUjjmes86
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:224
Collection:CaltechAUTHORS
Deposited By: Christopher Brennen
Deposited On:14 Dec 2004
Last Modified:26 Dec 2012 08:39

Repository Staff Only: item control page