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Related Experiment Videos

Computational approach for probing the flow through artificial heart devices

C Kiris1, D Kwak, S Rogers

  • 1MCAT, Inc., Mountain View, CA 94039, USA.

Journal of Biomechanical Engineering
|January 4, 1998
PubMed
Summary

Computational fluid dynamics (CFD) simulations are extended to artificial heart flow, providing detailed insights into biofluid mechanics. This research validates CFD for complex medical device design and analysis.

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Area of Science:

  • Computational fluid dynamics (CFD)
  • Biofluid mechanics
  • Aerospace engineering

Background:

  • Computational fluid dynamics (CFD) is crucial for aerospace research and design.
  • CFD offers detailed flowfield knowledge, complementing experimental data.
  • The incompressible Navier-Stokes equations are applicable to biofluid mechanics.

Purpose of the Study:

  • To extend CFD techniques for artificial heart flow simulation.
  • To validate computational methods for complex biofluid dynamics.
  • To analyze flow through artificial heart components and models.

Main Methods:

  • Solving unsteady incompressible Navier-Stokes equations using a pseudocompressibility approach.
  • Employing an implicit upwind-differencing scheme with Gauss-Seidel line relaxation.

Related Experiment Videos

  • Utilizing zonal methods and overlapped grid embedding for geometric complexity and moving boundaries.

    • Main Results:

    • Validated CFD simulations for a channel flow with a moving indentation against experimental data.
    • Achieved good agreement between computed and experimental steady-state solutions for a tilting-disk heart valve.
    • Successfully computed flow through an entire artificial heart model with experimental data.

    Conclusions:

    • CFD is a robust and efficient tool for artificial heart flow simulation.
    • Computational methods provide valuable, detailed flowfield data for medical device development.
    • The validated numerical approach aids in understanding and improving artificial heart performance.