Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지
DOI QR코드

DOI QR Code

DESIGN OF A CENTRIFUGAL BLOOD PUMP FOR ECMO DEVICE THROUGH NUMERICAL ANALYSES

수치해석을 통한 ECMO용 원심형 혈액 펌프 설계

  • Choi, S. (Dept. of Mechanical Engineering, Graduate School, Sogang Univ.) ;
  • Hur, N. (Multi-Phenomena CFD Engineering Research Center(ERC), Sogang Univ.) ;
  • Moshfeghi, M. (Multi-Phenomena CFD Engineering Research Center(ERC), Sogang Univ.) ;
  • Kang, S. (Dept. of Mechanical Engineering, Sogang Univ.) ;
  • Kim, W. (Dept. of Mechanical Engineering, Sogang Univ.) ;
  • Kang, S.H. (Dept. of Mechanical and Aerospace Engineering, Seoul National Univ.)
  • 최신화 (서강대학교 대학원 기계공학과) ;
  • 허남건 (서강대학교 다중현상 CFD 연구센터(ERC)) ;
  • ;
  • 강성원 (서강대학교 기계공학과) ;
  • 김원정 (서강대학교 기계공학과) ;
  • 강신형 (서울대학교 기계항공공학부)
  • Received : 2016.03.09
  • Accepted : 2016.03.31
  • Published : 2016.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

With the rapid increase in the number of patients with cardiopulmonary diseases, more cardiopulmonary circulatory assist devices are also needed. These devices can be employed when heart and/or lung function poorly. Due to the critical role they take, these devices have to be designed optimally from both mechanical and biomechanical aspects. This paper presents the CFD results of a baseline model of a centrifugal blood pump for the ECMO condition. The details of flow characteristics of the baseline model together with the performance curves and the modified index of hemolysis(MIH) are investigated. Then, the geometry of baseline impeller and the volute are modified in order to improve the biomechanical performance and reduce the MIH value. The numerical simulations of two cases represent that when impeller radius and prime volume decrease the MIH value also decreases. In addition, the modified geometry shows more uniform pressure distribution inside the volute. The findings provide valuable information for further modification and improvement of centrifugal blood pumps from both mechanical and biomechanical aspects.

Keywords

References

  1. 1991, O'Conner, L., "Engineering a replacement of human heart," Mech Eng, Vol.1, pp.37-43.
  2. 2015, Chang, M., Hur, N., Moshfeghi, M., Kang, S., Kim, W. and Kang, S.H., "A Numerical Study on Mechanical Performance and Hemolysis for Different Type of Centrifugal Blood Pumps," IMECE 2015.
  3. 1986, Karassik, I.J. and Messina, J.P., "Pump hand book second edition," McGraw-Hill.
  4. 1972, Carreau, P.J., "Rheological Equations from Molecular Network Theories," Journal of Rheology, Vol.16, pp.99-127. https://doi.org/10.1122/1.549276
  5. 1986, Wurzinger, L.J., Opitz, R. and Eckstein, H., "Mechanical Bloodtrauma. An overview," Angeiologie, Vol.38, pp.81-97.
  6. 1990, Giersiepen, M. and Wurzinger, L.J., "Estimation of Shear Stress-related Blood Damage in Heart Valve Prosteses-In Vitro Comparison of 25 Aortic Valves," Artificial Organs, Vol.13, pp.300-306. https://doi.org/10.1177/039139889001300507
  7. 2004, Garon, A. and Farinas, M.I., "Fast Three-dimensional Numerical Hemolysis Approximation," Artificial Organs, Vol.28, pp.1016-1025. https://doi.org/10.1111/j.1525-1594.2004.00026.x
  8. 2006, Farinas, M.I., Garon, A., Lacasse, D. and N'dri, D., "Asymptotically Consistent Numerical Approximation of Hemolysis," Journal of Biomechanical Engineering, Vol.128, pp.688-696. https://doi.org/10.1115/1.2241663
  9. 2015, Chang, M., Hur, N., Moshfeghi, M., Kang, S., Kim, W. and Kang, S.H., "Investigation on Mechanical and Bio-mechanical Performance of a Centrifugal Blood Pump," Journal of Computational Fluids Engineering, Vol.20, pp.88-95. https://doi.org/10.6112/kscfe.2015.20.2.088