TY - JOUR
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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U2 - 10.1114/1.281
DO - 10.1114/1.281
M3 - Article
C2 - 10870900
AN - SCOPUS:0033623709
SN - 0090-6964
VL - 28
SP - 431
EP - 441
JO - Annals of Biomedical Engineering
JF - Annals of Biomedical Engineering
IS - 4
ER -