This study deals with the interaction of blood flow with the wall aorta,i.e.,the boundary of the main artery that transports blood in the human body.The problem is addressed in the framework of computational fluid dyn...This study deals with the interaction of blood flow with the wall aorta,i.e.,the boundary of the main artery that transports blood in the human body.The problem is addressed in the framework of computational fluid dynamics complemented with(FSI),i.e.,a fluid-structure interaction model.Two fundamental types of wall are considered,namely a flexible and a rigid boundary.The resulting hemodynamic flows are carefully compared in order to determine which boundary condition is more effective in reproducing reality.Special attention is paid to wall shear stress(WSS),a factor known for its ability to produce atherosclerosis and bulges.Laminar flow conditions are assumed.The result show that the flexible wall can produce higher WSS and pressure drop compared to the rigid aorta case.展开更多
基金the Faculty of Mechanical Engineering at UTeM for its practical support and the Universiti Teknikal Malaysia Melaka(UTeM)and the Ministry Education Malaysia(MOE)for funding this research project through Grant No.FRGS/2018/FKM-CARE/F00367.
文摘This study deals with the interaction of blood flow with the wall aorta,i.e.,the boundary of the main artery that transports blood in the human body.The problem is addressed in the framework of computational fluid dynamics complemented with(FSI),i.e.,a fluid-structure interaction model.Two fundamental types of wall are considered,namely a flexible and a rigid boundary.The resulting hemodynamic flows are carefully compared in order to determine which boundary condition is more effective in reproducing reality.Special attention is paid to wall shear stress(WSS),a factor known for its ability to produce atherosclerosis and bulges.Laminar flow conditions are assumed.The result show that the flexible wall can produce higher WSS and pressure drop compared to the rigid aorta case.
