Mathematical modelling of triple arterial stenoses.
This paper examines the effects of triple stenoses (ie. three stenoses in series) in a reasonably large artery. The model developed is axi-symmetric and blood is assumed to be a Newtonian fluid. The governing equations are the Navier-Stokes equations and the continuity equation. These equations are solved using the Finite Element Method and the FIDAP computational fluid dynamics (C.F.D.) package. Various combinations of differing degrees of stenosis in the triplet are considered. Pressure drop profiles and streamline plots of the solutions to these models show that the effects of milder stenoses are diminished in the presence of more severe ones. Also, a pressure recovery is observed whenever a mild stenosis follows a more severe stenosis in multiply stenosed arteries.
Ang
K C
KC
Dept. of Applied Mathematics, University of Adelaide, Australia.
Mazumdar
J
J
D001161:Arteriosclerosis / Q000473:pathology / Q000503:physiopathology*; D001794:Blood Pressure; D003251:Constriction, Pathologic; D006801:Humans; D008433:Mathematics; D008955:Models, Cardiovascular