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Numerical Simulation of the Effect of Rotary Pump Geometry on Blood Flow in Patients under Hemodynamic Support after Fontan Procedure

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Biomedical Engineering Aims and scope

The effect of changes in the geometry of an implantable rotary blood pump on blood flow was studied. Eight three-dimensional models of pumps with varying outlet angles of the straightener blades and varying lengths of the impeller blades were used in the study. For all cases, the H–Q curves were calculated and analyzed, and the effect of the pump geometry on the scalar shear stresses at the operating point 2.2 L/min was assessed. The study showed that miniaturization of the axial pump by reducing the length of the rotor should be accompanied by an increase in the rotor speed to maintain the required level of support. In this case, the volume of the regions with increased scalar shear stresses does not change significantly. Numerical modeling of fluid flow was run in Fluent ANSYS 19.0 computational fluid dynamics software.

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Authors and Affiliations

  1. Institute of Biomedical Systems, National Research University of Electronic Technology (MIET), Zelenograd, Moscow, Russia

    M. V. Denisov & D. V. Telyshev

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  1. M. V. Denisov
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  2. D. V. Telyshev
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Correspondence to M. V. Denisov.

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Translated from Meditsinskaya Tekhnika, Vol. 54, No. 6, Nov.-Dec., 2020, pp. 31-34.

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Denisov, M.V., Telyshev, D.V. Numerical Simulation of the Effect of Rotary Pump Geometry on Blood Flow in Patients under Hemodynamic Support after Fontan Procedure. Biomed Eng 54, 411–415 (2021). https://doi.org/10.1007/s10527-021-10051-9

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  • DOI: https://doi.org/10.1007/s10527-021-10051-9

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