| A COMPARATIVE STUDY OF THE OPENING AND CLOSING PROCESS OF TWO TYPES OF MECHANICAL HEART VALVES USING ALE FINITE ELEMENT METHOD |
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| 引用本文： | 陈大鹏,张建海.A COMPARATIVE STUDY OF THE OPENING AND CLOSING PROCESS OF TWO TYPES OF MECHANICAL HEART VALVES USING ALE FINITE ELEMENT METHOD[J].应用数学和力学(英文版),1996,17(4):299-308. |
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| 作者姓名： | 陈大鹏 张建海 |
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| 作者单位： | Institute of Computational Engineering Science，Southwest Jiaotong University，Chengdu 610031，P.R.China |
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| 摘 要： | ＡＣＯＭＰＡＲＡＴＩＶＥＳＴＵＤＹＯＦＴＨＥＯＰＥＮＩＮＧＡＮＤＣＬＯＳＩＮＧＰＲＯＣＥＳＳＯＦＴＷＯＴＹＰＥＳＯＦＭＥＣＨＡＮＩＣＡＬＨＥＡＲＴＶＡＬＶＥＳＵＳＩＮＧＡＬＥＦＩＮＩＴＥＥＬＥＭＥＮＴＭＥＴＨＯＤＡＣＯＭＰＡＲＡＴＩＶＥＳＴＵＤＹＯＦ...
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| 收稿时间： | 3 April 1995 |
A comparative study of the opening and closing process of two types of mechanical heart valves using ALE finite element method |
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| Chen Dapeng,Zhang Jianhai.A comparative study of the opening and closing process of two types of mechanical heart valves using ALE finite element method[J].Applied Mathematics and Mechanics(English Edition),1996,17(4):299-308. |
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| Authors: | Chen Dapeng Zhang Jianhai |
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| Institution: | (1) Institute of Computational Engineering Science, Southwest Jiaotong University, 610031 Chengdu, P. R. China |
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| Abstract: | Using arbitrary Lagrangian-Eulerian(ALE)finite element method,this paper made a comparative study of the opening and closing behaviour of a downstream directional valve(DDM)and a St.Jude medical valve(SJM)through a two dimensional model of mechanical valve-blood interaction in which the valve is considered as a rigid body rotating around a fixed point,and the blood is simplified as viscous incompressible fluid It's concluded that:(1)Compared with SJM valve, DDM valve opens faster and closes the more gently.(2)The peak badk-flow-flow of DDM is smaller than that of SJM.The present investigation shows that being a better analogue of natural valve,DDM has a brighter potential on its durability than SJM. |
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| Keywords: | artificial mechanical valve ALE finite element method fluidsolid interaction |
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