The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Numerical Study on the Pulsatile Blood Flow through a Bileaflet Mechanical Heart Valve and Leaflet Behavior Using Fluid-Structure Interaction (FSI) Technique

유체-고체 상호작용 (FSI)기법을 이용한 이엽기계식 인공심장판막을 지나는 혈액유동과 판첨거동에 관한 수치해석적 연구

  • Published : 2004.06.01
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Abstract

Bileaflet mechanical valves have the complications such as hemolysis and thromboembolism, leaflet damage, and leaflet break. These complications are related with the fluid velocity and shear stress characteristics of mechanical heart valves. The first aim of the current study is to introduce fluid-structure interaction method for calculation of unsteady and three-dimensional blood flow through bileaflet valve and leaflet behavior interacted with its flow, and to overcome the shortness of the previous studies, where the leaflet motion has been ignored or simplified, by using FSI method. A finite volume computational fluid dynamics code and a finite element structure dynamics code have been used concurrently to solve the flow and structure equations, respectively, to investigate the interaction between the blood flow and leaflet. As a result, it is observed that the leaflet is closing very slowly at the first stage of processing but it goes too fast at the last stage. And the results noted that the low pressure is formed behind leaflet to make the cavitation because of closing velocity three times faster than opening velocity. Also it is observed some fluttering phenomenon when the leaflet is completely opened. And the rebounce phenomenon due to the sudden pressure change of before and after the leaflet just before closing completely. The some of time-delay is presented between the inversion point of ventricle and aorta pressure and closing point of leaflet. The shear stress is bigger and the time of exposure is longer when the flow rate is maximum. So it is concluded that the distribution of shear stress at complete opening stage has big effect on the blood damage, and that the low-pressure region appeared behind leaflet at complete closing stage has also effect on the blood damage.

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References

  1. Yoganathan, A. P., Corcoran, W. H., Harrison，E. C. and Cari, J. R., 1978, 'The Bjork-Shiley Aortic Prosthesis : Flow Characteristics, Thrombus Formation and Tissue Overgrowth', Circulation, Vol. 58, pp. 70-76
  2. Yoganathan, A. P., Sung, H. S., Woo, Y. R. and Jones, M., 1988, 'In Vitro Velocity and Turbulent Measurements in the Vicinity of Three New Mechanical Aortic Heart Value Prosthesis', J. of Thoracic Carcliovasc. Surg., Vol. 95, pp. 929-939
  3. Baldwin, J. T., Tarbell, J. M., Deutsch, S. and Gaselowitz, D. B., 1989, 'Mean Velocity Pattern within a Ventricular Assist Device', ASAIO, Vol. 35, pp. 429-433
  4. Black, M. M., Drury, P. J. and Tindale, W. B., 1983, 'Twenty-five Years of Heart Valve Substitutes : a Review', J. of the Royal Society of Medicine, Vol. 76, pp. 667-680
  5. Starr, A. and Edwards, M. L., 1961, 'Mitral Replacement Clinical Experience with a Ball-valve Prosthesis', Ann. Surg., Vol. 154, pp. 726-740 https://doi.org/10.1097/00000658-196110000-00017
  6. Bjork, V. O., 1969, 'A New Tilting Disc Valve Prosthesis', Scand. J. of Thoracic Cardiovasc. Surg., Vol. 3, pp. 1-10
  7. Bjork, V. O. and Henze, A., 1979, 'Ten Years Experience with the Bjork-Shiley Tilting Disc Valve', J. Thoracic Cardiovasc. Surg., Vol. 78, pp. 331
  8. Shim, H. and Lenker, J. A, 1988, 'Heart Valve Prostheses, In Encyclopedia of Medical Devices and Instrumentation,' John Wiley and Sons, pp. 1457-1474
  9. Pantalos, G. M., Everrett, S. D., Mohammad, S. F., Burns, G. L., Solen K. A., Reynolds, L. O. and Olsen, D. B., 1990, 'Quantification of Perivalvular Thrombus Formation in Blood Pumps by Coordinate Mapping', Artificial Organs, Vol. 14(5), pp. 348-354
  10. King, M. J., Corden, J., David, T. and Fisher, J., 1996, 'A Three-dimensional, Time-dependent Analysis of Flow through a Bileaflet Mechanical Heart Valve: Comparison of Experiment and Numerical Results', J. Biomechanics, Vol. 29, No.5, pp. 609-619 https://doi.org/10.1016/0021-9290(95)00107-7
  11. King, M. J., David, T., and Fisher, J., 1994, 'An Initial Parameter Study on Fluid Flow through Bileaflet Mechanical Heart Valves using Computational Fluid Dynamics', J. Engineering in Medicine, 208, pp. 63-71
  12. Krafczyk, M., Cerrolaza， M., Schulz, M., Rank and E., 1998, 'Analysis of 3D Transient Blood Flow Passing through an Artificial Aortic Valve by Lattice-Boltzmann Methods', J. of Bio mechanics, Vol. 31, pp. 453-462
  13. 이계한, 서종천, 1998, '인공판막 후부 공동부가 판막의 수력학적 성능에 미치는 영향' 의공학회지, Vol. 19, No.3, pp. 297-303
  14. Yang, H. Q. and Makhijani, V. B., 1994, 'A Strongly Coupled Pressure-based CFD Algorithm for Fluid-structure Interaction', Proceeding of 32nd Aerospace Sciences Meeting and Exhibition, Reno, NV, AIAA-94-0719
  15. Choi, C. R., 2003, 'An Experimental and Numerical Analysis on Transient Three-dimensional Flow Fields through Bileaflet Mechanical Heart Valves (MHV) using Particle Image Velocity (PIV) and Fluid-Structure Interaction (FSI) Model', Ph.D. dissertation, Kyunghee University, Korea
  16. Reul, H., et al. 1990, 'Technical Note', J. of Biomechanics, Vol. 23, pp. 181 -191
  17. Thubrikar M. J., Selim G, Robicsek F and Fowler B, 1996, 'Effect of the Sinus Geometry on the Dynamics of Bioprosthetic Heart Valves (Abstract)', Ann. Biomed. Eng., Vol. 24 S3
  18. Thubrikar M. J., Selim G, Robicsek F and Fowler B, 1996, 'Effect of the Sinus Geometry on the Dynamics of Bioprosthetic Heart Valves (Abstract)', Proceedings of the 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Amsterdam, The Netherlands, 10 November
  19. Giersiepen, M., Wurzinger, L. J., Opitz, R. and Reul, H., 1984, 'Estimation of Shear Stress Related Blood Damage in Heart Valve Prostheses in Vitro Comparison of 25mm Aortic Valves,' Int. J. of Artificial Organs, V이 13, No. 5, pp. 300-306
  20. Lee, S. C. and Chandran, K. B., 1995, 'Numerical Simulation of Instantaneous Backflow through Central Clearance of Mechanical Heart Valve,' Med. Bio. Eng. Comp., Vol. 33. p. 257 https://doi.org/10.1007/BF02510497