Elucidating the turbulence nature of the intracardiac flow: from medical images to multi-cycle Large Eddy Simulations

This brief article accompanies a fluid dynamics video presenting the results of a large-eddy simulation of the flow in a realistic left heart. The left heart geometry, from the pulmonary veins to the aortic root, is extracted from medical images and the endocardium movements are reconstructed throug...

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Published in:arXiv.org 2013-10
Main Authors: Chnafa, Christophe, Mendez, Simon, Nicoud, Franck
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Computer simulation
Deceleration
Fluid flow
Heart
Image reconstruction
Image registration
Large eddy simulation
Medical imaging
Simulation
Turbulence
Turbulent flow
Vortices
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creator Chnafa, Christophe
Mendez, Simon
Nicoud, Franck
description This brief article accompanies a fluid dynamics video presenting the results of a large-eddy simulation of the flow in a realistic left heart. The left heart geometry, from the pulmonary veins to the aortic root, is extracted from medical images and the endocardium movements are reconstructed through image registration. Large-eddy simulations are thus performed in a patient-specific heart model, where the patient-specific movements of the geometry are prescribed. The flow obtained is intermittent, showing both in the left atrium and in the left ventricle turbulent spots correlated to flow decelerations.
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subjects Computational fluid dynamics
Computer simulation
Deceleration
Fluid flow
Heart
Image reconstruction
Image registration
Large eddy simulation
Medical imaging
Simulation
Turbulence
Turbulent flow
Vortices
title Elucidating the turbulence nature of the intracardiac flow: from medical images to multi-cycle Large Eddy Simulations
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