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Fluids 2018, 3(3), 62; https://doi.org/10.3390/fluids3030062

Two-Way Coupling Fluid-Structure Interaction (FSI) Approach to Inertial Focusing Dynamics under Dean Flow Patterns in Asymmetric Serpentines

Departament de Química Física i Inorgànica, Física i Cristal∙lografia de Materials i Nanomaterials (FiCMA-FiCNA)-EMaS, Universitat Rovira i Virgili, Campus Sescelades, E-43007 Tarragona, Spain
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Received: 9 August 2018 / Revised: 23 August 2018 / Accepted: 23 August 2018 / Published: 31 August 2018
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Abstract

The dynamics of a spherical particle in an asymmetric serpentine is studied by finite element method (FEM) simulations in a physically unconstrained system. The two-way coupled time dependent solutions illustrate the path of the particle along a curve where a secondary flow (Dean flow) has developed. The simulated conditions were adjusted to match those of an experiment for which particles were focused under inertial focusing conditions in a microfluidic device. The obtained rotational modes inferred the influence of the local flow around the particle. We propose a new approach to find the decoupled secondary flow contribution employing a quasi-Stokes flow. View Full-Text
Keywords: inertial focusing; dean flow; serpentine; fluid-structure interaction (FSI); two-way coupling inertial focusing; dean flow; serpentine; fluid-structure interaction (FSI); two-way coupling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Pedrol, E.; Massons, J.; Díaz, F.; Aguiló, M. Two-Way Coupling Fluid-Structure Interaction (FSI) Approach to Inertial Focusing Dynamics under Dean Flow Patterns in Asymmetric Serpentines. Fluids 2018, 3, 62.

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