Title: Reflection behaviour of the porous tube boundary condition for FSI simulations of the truncated vascular network

Authors: Seyed Hamidreza Attaran; Hanieh Niroomand-Oscuii

Addresses: Department of Mechanical Engineering, Sahand University of Technology, Tabriz, Iran ' Department of Mechanical Engineering, Sahand University of Technology, Tabriz, Iran

Abstract: Among the several aspects of numerical simulations, the boundary condition is one of the most important issues to deal with in simulations of the cardiovascular network. Previously we introduced a new method for modelling the downstream of the truncated artery by means of porous media theory. In the present work, we aim to investigate the reflection characteristics of this new model and find the relation between the permeability and the reflection ratio. Numerical simulations have been performed and seven different cases have been tested. The results show a strong dependence of reflection on the permeability magnitude and it was found that the porous interface behaves like an intermediate situation between closed-end and open-end tubes.

Keywords: boundary condition; wave reflection; fluid-structure interaction; numerical simulation.

DOI: 10.1504/PCFD.2020.108518

Progress in Computational Fluid Dynamics, An International Journal, 2020 Vol.20 No.4, pp.231 - 237

Received: 07 Jan 2019
Accepted: 25 Oct 2019
Published online: 15 Jul 2020 *

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