Record Details

A Test Program to Measure Fluid Mechanical Whirl-Excitation Forces in Centrifugal Pumps

CaltechAUTHORS

View Archive Info
 
 
Field Value
 
Title A Test Program to Measure Fluid Mechanical Whirl-Excitation Forces in Centrifugal Pumps
 
Creator Brennen, C. E.
Acosta, A. J.
Caughey, T. K.
 
Subject Caltech Library Services
 
Description Much speculation has surrounded the possible unsteady hydrodynamic forces which could be responsible for the excitation of whirl instabilities in turbomachines. However there exist very few measurements of these forces which would permit one to evaluate the merits of the existing fluid mechanical analyses. In keeping with the informal nature of this workshop we will present details of a proposed test program for the measurement of the unsteady forces on centrifugal impellers caused by either (i) azimuthal asymmetry in the volute geometry or (ii) an externally imposed whirl motion of the impeller. In the second case the forces resulting from the imposed whirl motions with frequencies ranging from zero to synchronous will be measured by means of a force balance upon which the impeller is mounted. This work is presently being carried out under contract with the NASA George Marshall Space Flight Center, Huntsville, Alabama (Contract NAS 8-33108).
 
Publisher National Aeronautics and Space Administration
 
Contributor Childs, Dara W.
Hendricks, Robert C.
Vance, John M.
 
Date 1980
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Identifier http://authors.library.caltech.edu/192/1/BRE043.pdf
Brennen, C. E. and Acosta, A. J. and Caughey, T. K. (1980) A Test Program to Measure Fluid Mechanical Whirl-Excitation Forces in Centrifugal Pumps. In: Rotordynamic Instability Problems in High-Performance Turbomachinery. NASA Conference Publication. No.CP-2133. National Aeronautics and Space Administration , Washington, DC, USA, pp. 229-236. http://resolver.caltech.edu/CaltechAUTHORS:BREriphpt80 <http://resolver.caltech.edu/CaltechAUTHORS:BREriphpt80>
 
Relation http://resolver.caltech.edu/CaltechAUTHORS:BREriphpt80
http://authors.library.caltech.edu/192/