Numerical simulations of flow through the aorta using both ideal and realistic geometrical models.
The effects of curvature and tapering on the flow progression in the aorta were studied using numerical simulations on a realistic geometrical model of the aorta and three different versions of the ideal aorta models. The results showed that tapering increases velocity magnitude and wall shear stress while local curvatures affect the skewness of the velocity profile, the thickness of the boundary layer as well as the recirculation regions. Wall shear stress distribution in the aorta serves as an important determinant in the progression of arterial disease.
Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
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Wan Ab Naim
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Ganesan
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Al Abed
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Lim
D001011:Aorta / Q000033:anatomy & histology* / Q000502:physiology*; D001013:Aorta, Thoracic / Q000033:anatomy & histology / Q000502:physiology; D050197:Atherosclerosis / Q000209:etiology / Q000503:physiopathology; D001696:Biomechanical Phenomena; D001783:Blood Flow Velocity; D003198:Computer Simulation; D006439:Hemodynamics; D006801:Humans; D021621:Imaging, Three-Dimensional; D008955:Models, Cardiovascular; D011673:Pulsatile Flow