Unsteady flow in a 3D centrally-actuated type artificial heart

X. L. Yang, Yang Liu, J. M. Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review


The unsteady flow within a simplified 3D centrally-actuated type artificial heart was investigated numerically using moving boundary technique. The velocities on the inlet and outlet were determined according to the motion of the diaphragm. The case with heart beat rate of 75 beats per minute (bpm) was simulated. Two models were studied. It is found that, in the diastolic cycle, a vortex ring forms in the conjunction of the blood chamber and the inlet tube. This vortex ring can provide good wash-out on the wall.
Original languageEnglish
Pages (from-to)783-793
Number of pages11
JournalInternational Journal of Modern Physics C
Issue number5
Publication statusPublished - 1 May 2007


  • Centrally-actuated artificial heart
  • Moving boundary
  • Three-dimensional

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • General Physics and Astronomy
  • Computer Science Applications
  • Computational Theory and Mathematics


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