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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/17482

Title: Stereoscopic PIV of Steady Flow Through a Bileaflet Mechanical Heart Valve
Authors: Hutchison, Chris
Sullivan, Pierre E
Ethier, C. Ross
Keywords: Heart Valve
Issue Date: 21-Jul-2009
Abstract: Heart valve fluid mechanics influence valve clinical performance. In this study, flow was studied downstream of a model bileaflet mechanical heart valve (BiMHV) in an axisymmetric aortic sinus model using stereoscopic particle image velocimetry. The inlet flow was steady and the Reynolds number based on the aortic diameter was 7600, corresponding to peak systole. The central jet was found to be self similar, and exhibited axial decay similar to a free rectangular jet. Analysis of the out-of-plane velocity yielded two alternate explanations of streamwise vortex structure, with either a four-cell or an eight-cell streamwise vortex structure present in the mean velocity field. Organization of large scale three-dimensional flow structures was apparent even at peak systole. These findings are important to both the understanding of complex BiMHV vortex dynamics and three-dimensional flow modeling. To this end, the dataset obtained in the study is publicly available for CFD validation purposes.
URI: http://hdl.handle.net/1807/17482
Appears in Collections:Department of Mechanical and Industrial Engineering

Files in This Item:

File Description SizeFormat
ens1105.zipEnsemble Averages37.95 kBZip file with DataView/Open
utur.zipU prime data7.6 MBZip file with DataView/Open
uvec.zipU instantaneous data6.29 MBZip file with DataView/Open
vtur.zipV prime data7.59 MBZip file with DataView/Open
vvec.zipV instantaneous data7.43 MBZip file with DataView/Open
wtur.zipW prime data7.69 MBZip file with DataView/Open
wvec.zipW instantaneous data7.67 MBZip file with DataView/Open
xyz.zipCoordinates for files848 BZip file with DataView/Open

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