Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published 1966 | Accepted Version
Book Section - Chapter Open

Observations on the Performance of Centrifugal Pumps at Low Reynolds Numbers


From the results presented herein it is clear that the viscous flow in the centrifugal pump impeller is very complicated, but we see that the internal flow itself is not necessarily too inefficient and further that the hydraulic torque does not necessarily increase with lower Reynolds numbers. These results mean that the effect of external disc friction and its interaction in the volute are as important as the impeller design itself for such viscous flows. The present tests suggest that a pump which works well at high Reynolds numbers, as for water application, will not necessarily be the best pump for the low Reynolds number application. These internal flows are certainly very complicated and the authors hope that some of the techniques and suggestions made herein will be used for such work by others in the future.

Additional Information

Paper D2-3. To be presented at a Symposium on Pump Design, Testing and Operation, which will be held at the National Engineering Laboratory, East Kilbride, Glasgow, from 12th-14th April, 1965. The papers and discussions are to be published by H.M. Stationery Office in the Proceedings of the Symposium.

Attached Files

Accepted Version - Hydrodynamics_laboratory_publication_No.188.pdf


Files (3.3 MB)

Additional details

August 19, 2023
October 26, 2023