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Unsteady flow and diaphragm motion in total artificial heart

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Abstract

Unsteady flow and diaphragm motion in the phoenix artificial heart were studied using a CFD solver combined with an in-house developed FEM code. In diastole, the initially egg-shaped diaphragm deflates and forms two large depressions on the two sides and a small one on the round part. Vortices form in the blood chamber. In systole, the diaphragm inflates and pushes the blood to flow out through the opened outlet. The wall shear stress distribution is also strongly dependent on the flow field as well as the diaphragm motion.

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Authors and Affiliations

  1. Department of Modern Mechanics, University of Science and Technology of China, 230027, Hefei, Anhui, China

    X. L. Yang & J. M. Yang

  2. Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

    X. L. Yang & Y. Liu

Authors
  1. X. L. Yang
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  2. Y. Liu
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  3. J. M. Yang
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Correspondence to Y. Liu.

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Yang, X.L., Liu, Y. & Yang, J.M. Unsteady flow and diaphragm motion in total artificial heart. J Mech Sci Technol 21, 1869–1875 (2007). https://doi.org/10.1007/BF03177442

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  • DOI: https://doi.org/10.1007/BF03177442

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