Flow visualization in mechanical heart valves: occluder rebound and cavitation potential

V. Kini; C. Bachmann; A. Fontaine; S. Deutsch; J. M. Tarbell

doi:10.1114/1.281

Flow visualization in mechanical heart valves: occluder rebound and cavitation potential

V. Kini, C. Bachmann, A. Fontaine, S. Deutsch, J. M. Tarbell

Applied Research Laboratory (ARL)

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Particle image velocimetry (PIV) based investigation was carried out to account for the effect of valve rebound on the local fluid flow patterns and thus, by inference, on the local pressures and the cavitational potential. Actual flow rate measurements were used to confirm the average velocity at nozzle exit. The results indicate that the sudden stopping and subsequent rebound motion of the occluder on the higher-speed major orifice side plays a role in the initiation of the vaporous cavitation field there.

Original language	English (US)
Pages (from-to)	431-441
Number of pages	11
Journal	Annals of Biomedical Engineering
Volume	28
Issue number	4
DOIs	https://doi.org/10.1114/1.281
State	Published - 2000

All Science Journal Classification (ASJC) codes

Biomedical Engineering

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10.1114/1.281

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@article{e112232a0965481cb2994572a1b43415,

title = "Flow visualization in mechanical heart valves: occluder rebound and cavitation potential",

abstract = "Particle image velocimetry (PIV) based investigation was carried out to account for the effect of valve rebound on the local fluid flow patterns and thus, by inference, on the local pressures and the cavitational potential. Actual flow rate measurements were used to confirm the average velocity at nozzle exit. The results indicate that the sudden stopping and subsequent rebound motion of the occluder on the higher-speed major orifice side plays a role in the initiation of the vaporous cavitation field there.",

author = "V. Kini and C. Bachmann and A. Fontaine and S. Deutsch and Tarbell, {J. M.}",

note = "Funding Information: NIH Grant No. PHS 2 R01 HL 48652 supported this work. The taxpayer{\textquoteright}s contribution to this research is gratefully acknowledged. Thanks are also due to Dr. Howard Petrie at the Applied Research Laboratory for supplying the Surelite pulsed YAG lasers.",

year = "2000",

doi = "10.1114/1.281",

language = "English (US)",

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T1 - Flow visualization in mechanical heart valves

T2 - occluder rebound and cavitation potential

AU - Kini, V.

AU - Bachmann, C.

AU - Fontaine, A.

AU - Deutsch, S.

AU - Tarbell, J. M.

N1 - Funding Information: NIH Grant No. PHS 2 R01 HL 48652 supported this work. The taxpayer’s contribution to this research is gratefully acknowledged. Thanks are also due to Dr. Howard Petrie at the Applied Research Laboratory for supplying the Surelite pulsed YAG lasers.

PY - 2000

Y1 - 2000

N2 - Particle image velocimetry (PIV) based investigation was carried out to account for the effect of valve rebound on the local fluid flow patterns and thus, by inference, on the local pressures and the cavitational potential. Actual flow rate measurements were used to confirm the average velocity at nozzle exit. The results indicate that the sudden stopping and subsequent rebound motion of the occluder on the higher-speed major orifice side plays a role in the initiation of the vaporous cavitation field there.

AB - Particle image velocimetry (PIV) based investigation was carried out to account for the effect of valve rebound on the local fluid flow patterns and thus, by inference, on the local pressures and the cavitational potential. Actual flow rate measurements were used to confirm the average velocity at nozzle exit. The results indicate that the sudden stopping and subsequent rebound motion of the occluder on the higher-speed major orifice side plays a role in the initiation of the vaporous cavitation field there.

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JO - Annals of Biomedical Engineering

JF - Annals of Biomedical Engineering

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Flow visualization in mechanical heart valves: occluder rebound and cavitation potential

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All Science Journal Classification (ASJC) codes

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