Anderson, W. Kyle
Nichols, Stephen; Melnik, Robert
College of Engineering and Computer Science
University of Tennessee at Chattanooga
Place of Publication
An approach for desigining arterial stents to maximize wall shear stress is presented. A cost equation to maximize wall shear stress is derived and then inverted into a minimization problem for the optimizer. A 2-D mixed-element finite-volume scheme for solving the compressible Navier-Stokes equations is implemented. A paramaterization of the cross- sectional shape of the stent wire using Hicks-Henne functions is described. The strategies used in the commercial optimization software, DAKOTA, to minimize the cost equation are described. The solver is validated using well known fluid flow test cases and is shown to match other published computed results for bloodflow through stented arteries. New candidate stent shapes are produced by the optimization and are evaluated based on comparison to modern commercial stent designs.
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.
Stents (Surgery); Stents (Surgery) -- Fluid dynamics
Applied Mathematics | Computational Engineering
xiv, 77 leaves
Karman, Kristen, "2-D CFD design of the cross-sectional shape of arterial stents" (2013). Masters Theses and Doctoral Dissertations.