• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire de Mécanique des Fluides de Lille (LMFL)
  • View Item
  • Home
  • Laboratoire de Mécanique des Fluides de Lille (LMFL)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Particle Coherent Structures in Confined Oscillatory Switching Centrifugation

Article dans une revue avec comité de lecture
Author
ccROMANO, Francesco
531216 Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]

URI
http://hdl.handle.net/10985/24443
DOI
10.3390/cryst11020183
Date
2021-02
Journal
Crystals

Abstract

A small spherical rigid particle in a cylindrical cavity is considered. The harmonic rotation of the cavity wall drives the background flow characterized by the Strouhal number Str, assumed as the first parameter of our investigation. The particle immersed in the flow (assumed Stokesian) has a Stokes number St=1 and a particle-to-fluid density ratio ϱ which is assumed as the second parameter of this study. Building on the theoretical understanding of the recently discovered oscillatory switching centrifugation for inertial particles in unbounded flows, we investigate the effect of a confinement. For the first time we study how the presence of a wall affects the particle trajectory in oscillatory switching centrifugation dynamics. The emergence of two qualitatively different particle attractors is characterized for particles centrifuged towards the cavity wall. The implication of two such classes of attractors is discussed focusing on the application to microfluidics. We propose some strategies for exploiting the confined oscillatory switching centrifugation for selective particle segregation and for the enhancement of particle interaction events.

Files in this item

Name:
LMFL_Crystals_2021_ROMANO.pdf
Size:
8.085Mb
Format:
PDF
Description:
LMFL_Crystals_2021_ROMANO
View/Open
CC BY
This document is available under CC BY license

Collections

  • Laboratoire de Mécanique des Fluides de Lille (LMFL)

Related items

Showing items related by title, author, creator and subject.

  • The ACONIT project: an innovative design approach of active flow control for surge prevention in gas turbines 
    Communication avec acte
    ccDAZIN, Antoine; ccJOSEPH, Pierric; ccROMANÒ, Francesco; GALLAS, Q; MARTY, J; AIGOUY, G; STÔΒEL, M; NIEHUIS, R (IOP Publishing, 2021-01-22)
    The objective of the ACONIT project is to design, manufacture and test actuators for flow control for an implantation in an aircraft engine. The actuators will fulfil aeronautics requirement in order to increase the ...
  • Experimental Analysis of an Axial Compressor Operating under Flow Distorsion 
    Communication avec acte
    BARETTER, Alberto; ROUSSETTE, Olivier; ROMANO, Francesco; ccDAZIN, Antoine; ccJOSEPH, Pierric (ASME, 2022-06)
    In aircraft engines, compressor stages can encounter situations in which the flow is distorted at rotor inlet, for example during particular flight maneuvers, or due to the shape of the inlet of the airframe. The main ...
  • Liquid plug formation in an airway closure model 
    Article dans une revue avec comité de lecture
    ROMANÒ, Francesco; FUJIOKA, H.; MURADOGLU, M.; GROTBERG, J. B. (American Physical Society, 2019)
    The closure of a human lung airway is modeled as an instability of a two-phase flow in a pipe coated internally with a Newtonian liquid. For a thick enough coating, the Plateau-Rayleigh instability creates a liquid plug ...
  • Effects of Surface Tension and Yield Stress on Mucus Plug Rupture: a Numerical Study 
    Article dans une revue avec comité de lecture
    HU, Yingying; ROMANO, Francesco; GROTBERG, James B. (American Society of Mechanical Engineers, 2019)
    We study the effects of surface tension and yield stress on mucus plug rupture. A three-dimensional simplified configuration is employed to simulate mucus plug rupture in a collapsed lung airway of the 10 th generation. ...
  • Experimental and Numerical Analysis of a Compressor Stage under Flow Distortion 
    Article dans une revue avec comité de lecture
    BARETTER, Alberto; GODARD, Benjamin; ROUSSETTE, Olivier; ROMANÒ, Francesco; BARRIER, Raphael; ccDAZIN, Antoine; ccJOSEPH, Pierric (MDPI AG, 2021)
    On many occasions, fan or compressor stages have to face azimuthal flow distortion at inlet, which affects their performance and stability. These flow distortions can be caused by external events or by some particular ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales