| Measurements of steady flow through a bileaflet mechanical heart valve using stereoscopic PIV. | |
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MedLine Citation:
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PMID: 21080093 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Computational modeling of bileaflet mechanical heart valve (BiMHV) flow requires experimentally validated datasets and improved knowledge of BiMHV fluid mechanics. In this study, flow was studied downstream of a model BiMHV in an axisymmetric aortic sinus using stereoscopic particle image velocimetry. The inlet flow was steady and the Reynolds number based on the aortic diameter was 7600. Results showed the out-of-plane velocity was of similar magnitude as the transverse velocity. Although additional studies are needed for confirmation, analysis of the out-of-plane velocity showed the possible presence of a four-cell streamwise vortex structure in the mean velocity field. Spatial data for all six Reynolds stress components were obtained. Reynolds normal stress profiles revealed similarities between the central jet and free jets. These findings are important to BiMHV flow modeling, though clinical relevance is limited due to the idealized conditions chosen. To this end, the dataset is publicly available for CFD validation purposes. |
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Authors:
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Chris Hutchison; Pierre Sullivan; C Ross Ethier |
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Publication Detail:
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Type: Journal Article Date: 2010-11-16 |
Journal Detail:
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Title: Medical & biological engineering & computing Volume: 49 ISSN: 1741-0444 ISO Abbreviation: Med Biol Eng Comput Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-03-01 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7704869 Medline TA: Med Biol Eng Comput Country: United States |
Other Details:
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Languages: eng Pagination: 325-35 Citation Subset: IM |
Affiliation:
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Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada, chris.hutchison@utoronto.ca. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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