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.
Citation: 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.

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

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