• français
    • English
    English
  • Ouvrir une session
Aide
Voir le document 
  •   Accueil de SAM
  • Institut de Recherche de l’École navale (IRENAV)
  • Voir le document
  • Accueil de SAM
  • Institut de Recherche de l’École navale (IRENAV)
  • Voir le document
JavaScript is disabled for your browser. Some features of this site may not work without it.

Numerical simulations of drag modulation by microbubbles in a turbulent Taylor-Couette flow

Communication avec acte
Auteur
CHOUIPPE, Agathe
690 Institut de mécanique des fluides de Toulouse [IMFT]
CLIMENT, Eric
690 Institut de mécanique des fluides de Toulouse [IMFT]
LEGENDRE, Dominique
690 Institut de mécanique des fluides de Toulouse [IMFT]
GABILLET, Céline
13094 Institut de Recherche de l'Ecole Navale [IRENAV]

URI
http://hdl.handle.net/10985/8695
Date
2013

Résumé

The aim of our study is to investigate numerically the interaction between a dispersed phase composed of microbubbles and a turbulent Taylor-Couette flow (flow within the gap between two cylinders). We use the Euler-Lagrange approach based on Direct Numerical Simulation of the continuous phase flow equations and a Lagrangian tracking for the dispersed phase. Each bubble trajectory is calculated by integrating the force balance equation accounting for buoyancy, drag, added-mass, pressure gradient, and the lift forces. The numerical method has been adapted in order to take into account the feed-back effect of the dispersed bubbles on the carrying flow. Our approach is based on local volume average of the two-phase Navier-Stokes equations. Local and temporal variations of the bubble concentration and momentum source terms are accounted for in mass and momentum balance equations. A number of reference cases have been tested to validate the modelling approach and its numerical implementation. Then, our previous study of bubble dispersion has been extended to two-way coupling simulations of turbulent Taylor-Couette flows (only inner cylinder is rotating). Modulation of the drag will be discussed for different geometries, Reynolds numbers and bubble sizes. The results show that near-wall turbulent structures are modified by the presence of bubbles.

Fichier(s) constituant cette publication

Nom:
IRENav_ICMF_May2013_GABILLET_1.pdf
Taille:
1.461Mo
Format:
PDF
Voir/Ouvrir

Cette publication figure dans le(s) laboratoire(s) suivant(s)

  • Institut de Recherche de l’École navale (IRENAV)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow 
    Article dans une revue avec comité de lecture
    CHOUIPPE, Agathe; CLIMENT, Eric; LEGENDRE, Dominique; GABILLET, Céline (American Institute of Physics, 2014)
    We investigate bubble dispersion in turbulent Taylor-Couette flow. The aim of this study is to describe the main mechanisms yielding preferential bubble accumulation in near-wall structures of the flow. We first proceed ...
  • The influence of aeration and compressibility on slamming loads during cone water entry 
    Article dans une revue avec comité de lecture
    ELHIMER, Mehdi; JACQUES, Nicolas; EL MALKI ALAOUI, Aboulghit; GABILLET, Céline (Elsevier, 2017)
    The problem of the impact between a rigid body and a gas-liquid mixture is relevant to various engineering applications, including the design of breakwaters and LNG containers. In the present study, the specific problem ...
  • Effect of bubble’s arrangement on the viscous torque in bubbly Taylor-Couette flow 
    Article dans une revue avec comité de lecture
    FOKOUA, Georges; GABILLET, Céline; AUBERT, Adrien; COLIN, Catherine (American Institute of Physics, 2014)
    The study is an experimental investigation of the interactions between bubbles, coherent motion and viscous drag in a Taylor Couette flow, for the outer cylinder at rest. The cylinder radii ratio η is 0.91. Bubbles are ...
  • Contribution to the MHD modeling in low speed radial flux AC machines with air-gaps filled with conductive fluids 
    Article dans une revue avec comité de lecture
    MENANA, Hocine; CHARPENTIER, Jean-Frederic; GABILLET, Céline (Institute of Electrical and Electronics Engineers, 2014)
    This work deals with the modeling of the magnetohydrodynamic (MHD) phenomena in the air-gaps of low speed radial flux AC electrical machines filled with incompressible and electrically conductive fluids. The proposed model ...
  • Quantitative visualization of swirl and cloud bubbles in Taylor–Couette flow 
    Article dans une revue avec comité de lecture
    VAN RUYMBEKE, Bruno; MURAI, Yuichi; TASAKA, Yuji; OISHI, Yoshihiko; GABILLET, Céline; COLIN, Catherine; LATRACHE, Noureddine (Springer, 2016)
    We develop a novel method to study the gas phase features in a bubbly Taylor–Couette flow when bubbles are arranged as elevated toroidal strings. The flow is recorded in the front view plane with a highspeed camera for a ...

Parcourir

Tout SAMLaboratoiresAuteursDates de publicationCampus/InstitutsCe LaboratoireAuteursDates de publicationCampus/Instituts

Lettre Diffuser la Science

Dernière lettreVoir plus

Statistiques de consultation

Publications les plus consultéesStatistiques par paysAuteurs les plus consultés

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales