کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
876903 910871 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Validation of a numerical 3-D fluid–structure interaction model for a prosthetic valve based on experimental PIV measurements
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
پیش نمایش صفحه اول مقاله
Validation of a numerical 3-D fluid–structure interaction model for a prosthetic valve based on experimental PIV measurements
چکیده انگلیسی

A numerical 3-D fluid–structure interaction (FSI) model of a prosthetic aortic valve was developed, based on a commercial computational fluid dynamics (CFD) software program using an Arbitrary Eulerian Lagrangian (ALE) formulation. To make sure of the validity of this numerical model, an equivalent experimental model accounting for both the geometrical features and the hydrodynamic conditions was also developed. The leaflet and the flow behaviours around the bileaflet valve were investigated numerically and experimentally by performing particle image velocimetry (PIV) measurements. Through quantitative and qualitative comparisons, it was shown that the leaflet behaviour and the velocity fields were similar in both models. The present study allows the validation of a fully coupled 3-D FSI numerical model. The promising numerical tool could be therefore used to investigate clinical issues involving the aortic valve.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Medical Engineering & Physics - Volume 31, Issue 8, October 2009, Pages 986–993
نویسندگان
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