Computational Mechanics

, Volume 54, Issue 4, pp 911–919

Computation of residence time in the simulation of pulsatile ventricular assist devices

  • C. C. Long
  • M. Esmaily-Moghadam
  • A. L. Marsden
  • Y. Bazilevs
Original Paper

DOI: 10.1007/s00466-013-0931-y

Cite this article as:
Long, C.C., Esmaily-Moghadam, M., Marsden, A.L. et al. Comput Mech (2014) 54: 911. doi:10.1007/s00466-013-0931-y

Abstract

A continuum-based model of particle residence time for moving-domain fluid mechanics and fluid–structure interaction (FSI) computations is proposed, analyzed, and applied to the simulation of an adult pulsatile ventricular assist device (PVAD). Residence time is a quantity of clinical interest for blood pumps because it correlates with thrombotic risk. The proposed technique may be easily implemented in any flow or FSI solver. In the context of PVADs the results of the model may be used to assess how efficiently the pump moves the blood through its interior. Three scalar measures of particle residence time are also proposed. These scalar quantities may be used in the PVAD design with the goal of reducing thrombotic risk.

Keywords

PVAD Residence time FSI Isogeometric analysis Biomechanics FEM Blood flow 

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • C. C. Long
    • 2
  • M. Esmaily-Moghadam
    • 2
  • A. L. Marsden
    • 2
  • Y. Bazilevs
    • 1
  1. 1.Department of Structural EngineeringUniversity of California, San DiegoLa JollaUSA
  2. 2.Department of Mechanical and Aerospace EngineeringUniversity of California, San DiegoLa JollaUSA

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