Optimization of bypass graft using FSI numerical method

Do, Hung Viet, Das, Subrat, Owida, Amal, Yousif, Khaled and Morsi, Yosry S. 2012, Optimization of bypass graft using FSI numerical method, in ISTEC 2012 : Proceedings of the 3rd International Science & Technology Conference, ISTEC, [Dubai, UAE], pp. 893-902.

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Title Optimization of bypass graft using FSI numerical method
Author(s) Do, Hung Viet
Das, Subrat
Owida, Amal
Yousif, Khaled
Morsi, Yosry S.
Conference name International Science & Technology. Conference (3rd : 2012 : Dubai, United Arab Emirates)
Conference location Dubai, United Arab Emirates
Conference dates 13-15 Dec. 2012
Title of proceedings ISTEC 2012 : Proceedings of the 3rd International Science & Technology Conference
Editor(s) Isman, Aytekin
Dundar, Sahin
Publication date 2012
Conference series International Science & Technology Conference
Start page 893
End page 902
Total pages 10
Publisher ISTEC
Place of publication [Dubai, UAE]
Keyword(s) bypass graft
FSI numerical technique
Summary It is well documented in literature that the coronary artery bypass graft is normally fail after a short period of time, due to the development of plaque known as intimal hyperplasia within the graft. Various in vivo and in vitro studies have linked the development of intimal hyperplasia to the abnormal hemodynamics and compliance mismatch. Therefore, it is essential to fully understand the relationship between the hemodynamics inside the coronary artery bypass and its mechanical and geometrical characteristics under the correct physiological conditions. In this work, hemodynamic of the bypass graft is studied numerically. The effect of the host and graft diameters ratio, the angle of anastomosis and the graft configuration on the local flow patterns and the distribution of wall shear stress are examined. The pulsatile waveforms boundary conditions are adopted from in vivo measurement data to study the hemodynamics of composite grafts namely Consequence and Y grafting in terms temporal and spatial distributions of the blood flows. Moreover, various non-Newtonian and Newtonian models of blood have been carried out to examine the numerical simulation of blood flow in stenosis artery. The results are presented and discussed for various operating conditions.
Language eng
Field of Research 080205 Numerical Computation
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category E2 Full written paper - non-refereed / Abstract reviewed
Persistent URL http://hdl.handle.net/10536/DRO/DU:30052671

Document type: Conference Paper
Collection: School of Engineering
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