The flow structure in a three-dimensional Model of abdominal aortic bifurcation: ultrasonic and numerical study
A numerical and experimental research of fluid flow structure on a model involving statistical-average bifurcations of the abdominal aorta and iliac arteries with an axisymmetric stenosis in the right common iliac artery has been conducted. It was shown that a two-vortex flow formed in the external...
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Published in | St. Petersburg Polytechnical University Journal. Physics and Mathematics Vol. 12; no. 4 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Peter the Great St.Petersburg Polytechnic University
01.12.2019
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Subjects | |
Online Access | Get full text |
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Summary: | A numerical and experimental research of fluid flow structure on a model involving statistical-average bifurcations of the abdominal aorta and iliac arteries with an axisymmetric stenosis in the right common iliac artery has been conducted. It was shown that a two-vortex flow formed in the external iliac artery transforms a downstream into a four-vortex flow. The stenosis in the common iliac artery leads to formation of a recirculation zone behind it, namely, at the inner wall of the vessel. The following spatial bend of the external iliac artery leads to generation of a swirling flow in this vessel. A transitional flow, from a two-vortex to a single-vortex motion, forms in the internal iliac arteries. |
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ISSN: | 2405-7223 |
DOI: | 10.18721/JPM.12405 |