A Comparative Study of the Opening and Closing Process of Two Types of Mechanical Heart Valves Using ALE Finite Element Method

Chen Dapeng; Zhang Jianhai

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Article Navigation > Applied Mathematics and Mechanics > 1996 > 17(4): 287-296

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, 1996, 17(4): 287-296.

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A Comparative Study of the Opening and Closing Process of Two Types of Mechanical Heart Valves Using ALE Finite Element Method

Institute of Compilational Engineering Science, Southwest Jiaofong University, Chengdu 610031, P. R. China

Received Date: 1995-04-03
Rev Recd Date: 1995-11-05
Publish Date: 1996-04-15

Abstract

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.
- artificial mechanical valve,
- ALE finite element method,
- fluidsolid interaction

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References(26)

References

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