An Overset Mesh Approach for Valve Closure: An LVAD Application

Mohammed G. Al-Azawy, A. Turan, A. Revell

2016

Abstract

A comprehensive Computational Fluid Dynamics (CFD) simulation of transient, non-Newtonian, and turbulent blood flow through a positive displacement pump, left ventricular assist device (LVAD), is executed. Non-Newtonian blood flow is conducted to investigate the flow through a pulsatile pump LVAD by using common blood viscosity model: Carreau. The numerical results of non-Newtonian fluid with a turbulence model, Elliptic Blending Reynolds Stress Model (EB-RSM) are presented. The computational domain that has been selected is a pulsatile pump, which includes valves and a moving pusher plate. An overset mesh zero gap technique was employed to capture the cyclic motion of pusher plate and valves rotation to mimic the scenario of a natural heart. The use of this technique to rotate the valves and ensure full valve closure presented a good agreement results with the experimental data.

Paper Citation

in Harvard Style

Al-Azawy M., Turan A. and Revell A. (2016). An Overset Mesh Approach for Valve Closure: An LVAD Application . In Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016) ISBN 978-989-758-170-0, pages 145-151. DOI: 10.5220/0005663901450151

in Bibtex Style

@conference{biodevices16,
author={Mohammed G. Al-Azawy and A. Turan and A. Revell},
title={An Overset Mesh Approach for Valve Closure: An LVAD Application},
booktitle={Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016)},
year={2016},
pages={145-151},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005663901450151},
isbn={978-989-758-170-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016)
TI - An Overset Mesh Approach for Valve Closure: An LVAD Application
SN - 978-989-758-170-0
AU - Al-Azawy M.
AU - Turan A.
AU - Revell A.
PY - 2016
SP - 145
EP - 151
DO - 10.5220/0005663901450151