Computational Mechanics

, Volume 52, Issue 5, pp 971–981

Fluid–structure interaction simulation of pulsatile ventricular assist devices

Original Paper

DOI: 10.1007/s00466-013-0858-3

Cite this article as:
Long, C.C., Marsden, A.L. & Bazilevs, Y. Comput Mech (2013) 52: 971. doi:10.1007/s00466-013-0858-3

Abstract

In this paper we present a collection of fluid–structure interaction (FSI) computational techniques that enable realistic simulation of pulsatile Ventricular Assist Devices (VADs). The simulations involve dynamic interaction of air, blood, and a thin membrane separating the two fluids. The computational challenges addressed in this work include large, buckling motions of the membrane, the need for periodic remeshing of the fluid mechanics domain, and the necessity to employ tightly coupled FSI solution strategies due to the very strong added mass effect present in the problem. FSI simulation of a pulsatile VAD at realistic operating conditions is presented for the first time. The FSI methods prove to be robust, and may be employed in the assessment of current, and the development of future, pulsatile VAD designs.

Keywords

Pulsatile VAD Fluid–structure interaction Isogeometric analysis Biomechanics Finite elements Blood flow Rotation-free shells 

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.University of California, San DiegoSan DiegoUSA
  2. 2.University of California, San DiegoSan DiegoUSA

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