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2010 | OriginalPaper | Chapter

10. Turbulence in the Cardiovascular System: Aortic Aneurysm as an Illustrative Example

Authors : Liang Ge, G.S. Kassab

Published in: Computational Cardiovascular Mechanics

Publisher: Springer US

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Abstract

Turbulence is a fluid regime characterized by chaotic and stochastic changes of flow. The onset of turbulence can occur under disease conditions and is known to have adverse effects on the function of the cardiovascular (CV) system. This chapter outlines the basic features of turbulence in the CV system. As a specific example, simulation of turbulent flow in an abdominal aortic aneurysm (AAA) is presented. The simulated results show that transition to turbulence occurs in large aneurysms with high Reynolds number. Onset of turbulence is seen to drastically change the distribution of wall shear stress and fluid pressure. The general implications are enumerated.

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previous chapter Fluid–Structure Interaction (FSI) Modeling in the Cardiovascular System

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Title: Turbulence in the Cardiovascular System: Aortic Aneurysm as an Illustrative Example
Authors: Liang Ge
G.S. Kassab
Publisher: Springer US
Book: Computational Cardiovascular Mechanics
Print ISBN: 978-1-4419-0729-5

Electronic ISBN: 978-1-4419-0730-1

Copyright Year: 2010
DOI: https://doi.org/10.1007/978-1-4419-0730-1_10