Experimental Validation of Large Eddy Simulation as a Benchmark for Reynolds-Averaged Navier-Stokes Flow Modeling in a Magnetically Levitated Blood Pump.

Jonas Abeken¹, Utku Gülan², Kai von Petersdorff-Campen³, Vasileios Charitatos¹, Marianne Schmid Daners⁴, Mirko Meboldt³, Markus Holzner⁵, Diane de Zélicourt¹, Vartan Kurtcuoglu⁶

¹Interface Group, Department of Physiology, University of Zurich, Zurich, Switzerland.

²Hi-D Imaging, Winterthur, Switzerland.

³Product Development Group Zurich, Institute of Materials, Design and Fabrication, ETH Zurich, Zurich, Switzerland.

⁴Institute for Dynamic Systems and Control, ETH Zurich, Zurich, Switzerland.

⁵Environmental Fluid Mechanics Group, Institute of Hydraulic Engineering and River Research, University of Natural Resources and Life Sciences BOKU, Vienna, Austria.

⁶Interface Group, Department of Physiology, University of Zurich, Zurich, Switzerland. vartan.kurtcuoglu@uzh.ch.

PubMed PMC DOI PDF

Abstract

PURPOSE: This study investigates the potential of large eddy simulation (LES) as a benchmark for validating Reynolds-averaged Navier-Stokes (RANS) models in the CentriMag centrifugal blood pump. We compare velocity field predictions from LES and RANS against particle image velocimetry (PIV) and quantify previously unreported non-rotatory components in the motion of the magnetically levitated impel…

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