Evaluation of a transient, simultaneous, arbitrary Lagrange-Euler based multi-physics method for simulating the mitral heart valve

Daniel M Espino; Duncan E T Shepherd; David W L Hukins

doi:10.1080/10255842.2012.688818

Evaluation of a transient, simultaneous, arbitrary Lagrange-Euler based multi-physics method for simulating the mitral heart valve

Daniel M Espino, Duncan E T Shepherd, David W L Hukins

Mechanical Engineering

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29 Citations (Scopus)

502 Downloads (Pure)

Abstract

A transient multi-physics model of the mitral heart valve has been developed, which allows simultaneous calculation of fluid flow and structural deformation. A recently developed contact method has been applied to enable simulation of systole (the stage when blood pressure is elevated within the heart to pump blood to the body). The geometry was simplified to represent the mitral valve within the heart walls in two dimensions. Only the mitral valve undergoes deformation. A moving arbitrary Lagrange-Euler mesh is used to allow true fluid-structure interaction (FSI). The FSI model requires blood flow to induce valve closure by inducing strains in the region of 10-20%. Model predictions were found to be consistent with existing literature and will undergo further development.

Original language	English
Pages (from-to)	450-458
Number of pages	9
Journal	Computer Methods in Biomechanics and Biomedical Engineering
Volume	17
Issue number	4
Early online date	29 May 2012
DOIs	https://doi.org/10.1080/10255842.2012.688818
Publication status	Published - 2014

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10.1080/10255842.2012.688818

Espino_et_al_Evaluation_of_a_Transient_Computer_Methods_2014
This is an Accepted Manuscript of an article first published by Taylor & Francis in Computer Methods in Biomechanics and Biomedical Engineering on 29 May 2012, available online: http://wwww.tandfonline.com/doi/abs/10.1080/10255842.2012.688818 Checked July 2015
Accepted author manuscript, 341 KBLicence: Other (please specify with Rights Statement)

Cite this

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abstract = "A transient multi-physics model of the mitral heart valve has been developed, which allows simultaneous calculation of fluid flow and structural deformation. A recently developed contact method has been applied to enable simulation of systole (the stage when blood pressure is elevated within the heart to pump blood to the body). The geometry was simplified to represent the mitral valve within the heart walls in two dimensions. Only the mitral valve undergoes deformation. A moving arbitrary Lagrange-Euler mesh is used to allow true fluid-structure interaction (FSI). The FSI model requires blood flow to induce valve closure by inducing strains in the region of 10-20%. Model predictions were found to be consistent with existing literature and will undergo further development.",

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AB - A transient multi-physics model of the mitral heart valve has been developed, which allows simultaneous calculation of fluid flow and structural deformation. A recently developed contact method has been applied to enable simulation of systole (the stage when blood pressure is elevated within the heart to pump blood to the body). The geometry was simplified to represent the mitral valve within the heart walls in two dimensions. Only the mitral valve undergoes deformation. A moving arbitrary Lagrange-Euler mesh is used to allow true fluid-structure interaction (FSI). The FSI model requires blood flow to induce valve closure by inducing strains in the region of 10-20%. Model predictions were found to be consistent with existing literature and will undergo further development.

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Evaluation of a transient, simultaneous, arbitrary Lagrange-Euler based multi-physics method for simulating the mitral heart valve

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