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Study of local inertial focusing conditions for spherical particles in asymmetric serpentines

  • Identification data

    Identifier: imarina:6063472
    Authors:
    Pedrol EMassons JDíaz FAguiló M
    Abstract:
    © 2019 by the authors Inertial focusing conditions of fluorescent polystyrene spherical particles are studied at the pointwise level along their pathlines. This is accomplished by an algorithm that calculates a degree of spreading function of the particles’ trajectories taking streaklines images as raw data. Different confinement ratios of the particles and flow rates are studied and the results are presented in state diagrams showing the focusing degree of the particles in terms of their position within a curve of an asymmetric serpentine and the applied flow rate. In addition, together with numerical simulation results, we present empirical evidence that the preferred trajectories of inertially focused spheres are contained within Dean vortices’ centerlines. We speculate about the existence of a new force, never postulated before, to explain this fact.
  • Others:

    Author, as appears in the article.: Pedrol E; Massons J; Díaz F; Aguiló M
    Department: Química Física i Inorgànica
    URV's Author/s: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Masons Bosch, Jaime
    Keywords: Wall effect Vortex Shear gradient-induced Serpentine Separation Rigid spheres Poiseuille flow Migration Microparticles Microfluidics Inertial force Inertial focusing Fluid Filtration Dean Cells Behavior
    Abstract: © 2019 by the authors Inertial focusing conditions of fluorescent polystyrene spherical particles are studied at the pointwise level along their pathlines. This is accomplished by an algorithm that calculates a degree of spreading function of the particles’ trajectories taking streaklines images as raw data. Different confinement ratios of the particles and flow rates are studied and the results are presented in state diagrams showing the focusing degree of the particles in terms of their position within a curve of an asymmetric serpentine and the applied flow rate. In addition, together with numerical simulation results, we present empirical evidence that the preferred trajectories of inertially focused spheres are contained within Dean vortices’ centerlines. We speculate about the existence of a new force, never postulated before, to explain this fact.
    Thematic Areas: Physics, fluids & plasmas Mechanics Mechanical engineering Fluid flow and transfer processes Condensed matter physics Ciencias sociales
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 23115521
    Author's mail: magdalena.aguilo@urv.cat jaume.masons@urv.cat f.diaz@urv.cat
    Author identifier: 0000-0001-6130-9579 0000-0003-4325-6084 0000-0003-4581-4967
    Record's date: 2024-10-19
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.mdpi.com/2311-5521/5/1/1
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Fluids. 5 (1):
    APA: Pedrol E; Massons J; Díaz F; Aguiló M (2020). Study of local inertial focusing conditions for spherical particles in asymmetric serpentines. Fluids, 5(1), -. DOI: 10.3390/fluids5010001
    Article's DOI: 10.3390/fluids5010001
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2020
    Publication Type: Journal Publications
  • Keywords:

    Condensed Matter Physics,Fluid Flow and Transfer Processes,Mechanical Engineering,Mechanics,Physics, Fluids & Plasmas
    Wall effect
    Vortex
    Shear gradient-induced
    Serpentine
    Separation
    Rigid spheres
    Poiseuille flow
    Migration
    Microparticles
    Microfluidics
    Inertial force
    Inertial focusing
    Fluid
    Filtration
    Dean
    Cells
    Behavior
    Physics, fluids & plasmas
    Mechanics
    Mechanical engineering
    Fluid flow and transfer processes
    Condensed matter physics
    Ciencias sociales
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