Committee Chair

Hiestand, James

Committee Member

Goulet, Ron; Damshala, Prakash; Owino, Joseph

Department

Dept. of Mechanical Engineering

College

College of Engineering and Computer Science

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

Heart valve prostheses are used to replace heart valves in patients afflicted with valvular heart disease. The malfunctioning heart valve adversely affects the fluid mechanical performance. While the choice of mechanical VS biological valve prostheses is dependent on the patient, the biological valves should have improved hemodynamic performance compared to the mechanical valves. This work focused on CFD analysis of the Starr-Edwards caged ball valve and a biological valve and serves to validate the improved hemodynamics of the latter valve in comparison to the former. Commercial CFD software (CFD-GEOM, CFD-ACE, CFD-VIEW) are used for the analys is. The main results are: Smaller pressure drop across the biological valve compared to the Starr- Edwards valve, smaller downstream turbulent kinetic energy production in the biological valve compared to the Starr-Edwards valve, and smaller shear stress associated with the biological valve compared to the Starr-Edwards valve.

Degree

M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science.

Date

2010

Subject

Heart valve prosthesis

Discipline

Mechanical Engineering

Document Type

Masters theses

Extent

vi, 63 leaves

Language

English

Rights

Under copyright.

License

http://creativecommons.org/licenses/by-nc-nd/3.0/

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