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Operational Parametric Study of a Tesla Pump: Disk Pack Spacing and Rotational Speed

[+] Author Affiliations
Laura Dodsworth, Dominic Groulx

Dalhousie University, Halifax, NS, Canada

Paper No. AJKFluids2015-33220, pp. V001T33A006; 6 pages
  • ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
  • Volume 1: Symposia
  • Seoul, South Korea, July 26–31, 2015
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5721-2
  • Copyright © 2015 by ASME


A Tesla pump was designed and built with the objective of being a compact and rugged pump for cooling electronics. A Tesla pump is a bladeless pump that uses spinning disks to move fluid. Due to the nature of the pump, cavitation is avoided, and the lack of conventional blades makes it rugged and easy to build. A continuous test loop was designed and used to produce pump curves at several different disk pack spacings and motor speeds. Pump curves were obtained and analyzed for this prototype Tesla pump. It was determined the smallest spacing tested proved to be the most efficient, especially at the highest motor speed. A relationship between disk pack gap and efficiency was found, as well as one between the pump’s performance and motor speed.

Copyright © 2015 by ASME
Topics: Pumps , Disks



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