Title
Two-Dimensional Meshless Numerical Modeling Of The Blood Flow Within Arterial End-To-Side Distal Anastomoses
Abstract
In the current paper we introduce the localized meshless method to resolve the two-dimensional blood flow in the vicinity of a peripheral bypass graft end-to-side distal anastomosis. The goal is to incorporate this new numerical technique in extracting the values of the fluid mechanics wall parameters, such as the wall shear stress and the wall shear stress gradients, which are suggested as contributory factors to the growth of post-operative intimal hyperplasia at the anastomosis. The localized meshless method depends on the Hardy Multiquadrics radial basis function to locally expand the flow variables over a set of nodes distributed in the computational domain. An explicit scheme is adapted for the meshless formulation of the laminar incompressible Navier-Stokes equations. Our special interest in the localized meshless method arises from its automated point distribution feature that significantly facilitates the pre-processing of the solution. The blood flow is simulated in three different anastomosis model geometries; the conventional or direct model, the Miller Cuff model, and the Taylor Patch model. The results of the current localized meshless numerical method show a great agreement with the results provided by a well-established finite volume method commercial software. Copyright © 2006 by ASME.
Publication Date
1-1-2006
Publication Title
ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Number of Pages
-
Document Type
Article; Proceedings Paper
Personal Identifier
scopus
DOI Link
https://doi.org/10.1115/IMECE2006-14900
Copyright Status
Unknown
Socpus ID
84920631191 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/84920631191
STARS Citation
El Zahab, Zaher; Divo, Eduardo A.; Kassab, Alain J.; and Mitteff, Eric A., "Two-Dimensional Meshless Numerical Modeling Of The Blood Flow Within Arterial End-To-Side Distal Anastomoses" (2006). Scopus Export 2000s. 8731.
https://stars.library.ucf.edu/scopus2000/8731