• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • View Item
  • Home
  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Kinematics of a Cylindrical Particle at Low Reynolds Numbers in Asymmetrical Conditions

Article dans une revue avec comité de lecture
Author
ccCHAMPMARTIN, Stephane
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
AMBARI, Abdelhak
BEN RICHOU, Abderrahim
309291 Faculté des sciences et techniques de Beni-Mellal

URI
http://hdl.handle.net/10985/19436
DOI
10.29252/jafm.12.05.29908
Date
2019
Journal
Journal of Applied Fluid Mechanics

Abstract

This paper concerns the hydrodynamic interactions on a cylindrical particle in non-dilute regime at low Reynolds numbers. The particle moves between two parallel walls with its axis parallel to the boundaries. A numerical finite-volume procedure is implemented and a generalized resistance matrix is built by means of the superposition principle. Three problems are solved: the settling of the particle, the transport of a neutrally and of a non-neutrally buoyant particle in a Poiseuille flow. Concerning sedimentation, the settling velocity is maximal off the symmetry plane and decreases when the confinement increases. The particle rotates in the direction opposite to that of contact rolling. The particle induces a high pressure zone in the front and a low pressure zone in the back, the difference of which is maximal in the symmetry plane. For a neutrally-buoyant particle, the hydrodynamic interactions lead to a velocity lag between the particle and the undisturbed flow. The magnitude of the velocity lag increases with confinement and eccentricity. The angular velocity and pressure difference are opposite to the previous case. For a non-neutrally buoyant particle, three situations are found depending on a dimensionless parameter similar to an inverse Shields number. For its extreme low and high values, the particle is respectively either carried by the flow or settles against it whatever its position. For intermediate values, the particle either settles close to the walls or is dragged by the flow close to the symmetry plane. Similar results are obtained for the angular velocity and the pressure difference. All these results question the assumption usually met in particulate transport in which the kinematics of the particle is often supposed to be that of the flow.

Files in this item

Name:
LAMPA_JAFM_2019_CHAMPMARTIN.pdf
Size:
1.931Mb
Format:
PDF
View/Open

Collections

  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)

Related items

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

  • Conséquences du confinement dans le transfert de chaleur sur une sphère dans un fluide non newtonien 
    Communication avec acte
    DESPEYROUX, Antoine; AMBARI, Abdelhak; BEN RICHOU, Abderrahim; ccCHAMPMARTIN, Stephane (Société Française de Thermique / Congrès Français de Thermique - Energies et transports durables, 25 - 28 mai 2010, Le Touquet, 2010)
    Le phénomène de transfert de chaleur ou de masse sur une particule sphérique en situation d’interactions hydrodynamiques et thermiques ou massiques est d’un intérêt majeur pour de nombreux problèmes rencontrés dans les ...
  • Wall effects on the transportation of a cylindrical particle in power-law fluids 
    Article dans une revue avec comité de lecture
    DESPEYROUX, Antoine; AMBARI, Abdelhak; BEN RICHOU, Abderrahim (Elsevier, 2011)
    The present work deals with the numerical calculation of the Stokes-type drag undergone by a cylindrical particle perpendicularly to its axis in a power-law fluid. In unbounded medium, as all data are not available yet, ...
  • Failure probability evaluation of a hydrodynamic journal bearing 
    Communication avec acte
    DIOP, Khadim; CHARKI, Abdérafi; ccCHAMPMARTIN, Stephane; AMBARI, Abdelhak (2015)
    Journal fluid bearings are widely used in industry due to their static and dynamic behavior and their very low coefficient of friction. The technical requirements to improve the new technologies design are increasingly ...
  • Nouvelle méthode de détermination de la distribution de la tailles des pores d’un milieu poreux par l’injection d’un fluide à seuil 
    Communication avec acte
    MALVAULT, Guillaume; OUKHLEF, Aimad; ccRODRIGUEZ DE CASTRO, Antonio; ccCHAMPMARTIN, Stephane; ccAHMADI-SENICHAULT, Azita; AMBARI, Abdelhak (2013)
    La caractérisation des milieux poreux (M.P.) en termes de porosité, de surface spécifique, de distribution de tailles des pores etc. est un enjeu important pour de nombreuses filières industrielles : récupération assistée ...
  • Reliability of a Hydrodynamic Journal Bearing 
    Article dans une revue avec comité de lecture
    DIOP, Khadim; CHARKI, Abdérafi; ccCHAMPMARTIN, Stephane; AMBARI, Abdelhak (Trans Tech Publications, 2015)
    Journal fluid bearings are widely used in industry due to their static and dynamic behavior and their very low coefficient of friction. The technical requirements to improve the new technologies design are increasingly ...

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