Comparison of flow characteristics of enlarged blood pump models with different impeller design

L.P. Chua, Ching Man Yu, H.L. Leo, W.K. Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

In earlier studies, a 5:1 enlarged pump model of the Kyoto-NTN Magnetically Suspended Centrifugal Blood Pump has been constructed and the gap pressure and wall shear stress have been measured. With the satisfactory results obtained and also as air was the medium used in the previous investigations, another 5:1 enlarged pump model using water as the medium was thus designed and constructed. Five different impeller blade profile designs are used in the present study. By varying (1) the design of the blade profiles i.e. forward, radial and backward, (2) the number of blades used and (3) the rotating speeds, the flow characteristics of the pump are investigated. It is found that the impeller with the higher number of blades used with the forward and straight blade profiles have the best performance. In earlier studies, a 5:1 enlarged pump model of the Kyoto-NTN Magnetically Suspended Centrifugal Blood Pump has been constructed and the gap pressure and wall shear stress have been measured. With the satisfactory results obtained and also as air was the medium used in the previous investigations, another 5:1 enlarged pump model using water as the medium was thus designed and constructed. Five different impeller blade profile designs are used in the present study. By varying (1) the design of the blade profiles i.e. forward, radial and backward, (2) the number of blades used and (3) the rotating speeds, the flow characteristics of the pump are investigated. It is found that the impeller with the higher number of blades used with the forward and straight blade profiles have the best performance.
Original languageEnglish
Pages (from-to)369-378
Number of pages10
JournalInternational Communications in Heat and Mass Transfer
Volume26
Issue number3
DOIs
Publication statusPublished - 1 Apr 1999
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Chemical Engineering(all)
  • Condensed Matter Physics

Cite this