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

  • Liang Ge
  • G.S. Kassab
Chapter

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.

Keywords

Combustion Vortex Convection Smoke Velocimetry 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Liang Ge
    • 1
  • G.S. Kassab
    • 2
    • 3
  1. 1.Department of SurgeryUniversity of California and San Francisco VA Medical CenterSan FranciscoUSA
  2. 2.Weldon School of Biomedical EngineeringPurdue UniversityWest LafayetteUSA
  3. 3.Department of Biomedical Engineering Department of Surgery Department of Cellular and Integrative Physiology Indiana Center for Vascular Biology and MedicineIUPUIIndianapolisUSA

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