Gap flow field measurements of bio-centrifugal ventricular assist device using laser Doppler anemometer

Leok Poh Chua, Kang Shiu Ong, Simon Ching Man Yu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

A flow field study in the gap between the impeller and the stationary casing of a bio-centrifugal pump was conducted using laser Doppler anemometer (LDA). Any stagnation flow and high shear stress flow observed is useful to identify the region of possible blood clotting or blood damage. Blood analog that has the similar characteristics as blood was used in this study. The gap flow was found to be smooth with the absence of any standing vortices. It was also found that the existence of the splitter plate of the double volute design has highly affected the gap flow and created a washout mechanism, which could cause the gap flow tended towards the eye of the impeller and successfully prevent the fluid from being stagnated in the gap.

Original languageEnglish
Title of host publicationProceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
Subtitle of host publicationVolume 1, Part C, Forums
EditorsA. Ogut, Y. Tsuji, M. Kawahashi
PublisherAmerican Society of Mechanical Engineers
Pages2095-2099
Number of pages5
ISBN (Print)0791836967, 9780791836965
DOIs
Publication statusPublished - 2003
Externally publishedYes
Event4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States
Duration: 6 Jul 200310 Jul 2003

Publication series

NameProceedings of the ASME/JSME Joint Fluids Engineering Conference
Volume1 C

Conference

Conference4th ASME/JSME Joint Fluids Engineering Conference
Country/TerritoryUnited States
CityHonolulu, HI
Period6/07/0310/07/03

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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