Le CNRS
Université Paris-Sud
French

  Fluides, Automatique
  et Systèmes Thermiques

 Search on this site

 

   Home > Instabilities, Waves and Turbulence > Rotating turbulence

Rotating turbulence


french version

Actual: A. Campagne, P.-P. Cortet, M. Rabaud, F. Moisy

Collaborations: L. Maas (NIOZ, Utrecht University), J. Sommeria (LEGI, Grenoble)

Former: C. Lamriben, C. Morize, J. Seiwert, G. Tan, L. Agostini.


Turbulence subjected to system rotation is present in a wide range of applications, from engineering to geophysics and astrophysics. Although often coupled to other effects, such as stratification or confinement, rotating turbulence in itself is a delicate issue which is not completely understood. The trends toward two-dimensionality, the influence of the background rotation on the energy decay law, or the asymmetry between cyclonic and anticyclonic vortices, are among the most challenging issues for rotating turbulence.

We investigate the effect of a background rotation on the decay of grid-generated turbulence. A first series of experiments have been carried out on a small scale rotating platform (Morize, 2006). Those experiments are now performed on the new rotating platform Gyroflow, available since 2009.


Vorticity field in a decaying rotating turbulence experiment, showing the growth of cyclones (Moisy et al, 2011). Download AVI.


See also:


Publications

  • Direct measurements of anisotropic energy transfers in a rotating turbulence experiment
    C. Lamriben, P.-P. Cortet, F. Moisy, Phys. Rev. Lett. 107, 024503 (2011).
    [Abstract | PDF]
  • Excitation of inertial modes in a closed grid turbulence experiment under rotation
    C. Lamriben, P.P. Cortet, F. Moisy, L. Maas, Phys. Fluids 23, 015102 (2011).
    [Abstract | PDF]
  • Decay laws, anisotropy and cyclone-anticyclone asymmetry in decaying rotating turbulence
    F. Moisy, C. Morize, M. Rabaud and J. Sommeria, J. Fluid Mech. 666, 5-35 (2011).
    [Abstract | PDF | suppl. material]
  • Structure functions and energy transfers in a decaying rotating turbulence experiment
    F. Moisy, L. Agostini, G. Tan, 12th Euromech European Turbulence Conference, Marburg, Sept. 7 - 10, 2009.
    [PDF]
  • On the decrease of intermittency in decaying rotating turbulence
    J. Seiwert, C. Morize, F. Moisy, Phys. Fluids 20, 071702 (2008).
    [Abstract | PDF]
  • Dynamics of the anisotropy in decaying rotating turbulence with confinement effects
    C. Morize, F. Moisy, M. Rabaud and J. Sommeria, Congrès Français de Mécanique (2007).
    [PDF]
  • On the cyclone-anticyclone asymmetry in decaying rotating turbulence
    C. Morize, F. Moisy, M. Rabaud and J. Sommeria, CD-ROM Conference on Turbulence and Interactions TI2006, May 29 - June 2, 2006, Porquerolles, France (2006).
    [PDF]
  • The decay law of grid turbulence in a rotating tank
    F. Moisy, C. Morize and M. Rabaud, CD-ROM Conference on Turbulence and Interactions TI2006, May 29 - June 2, 2006, Porquerolles, France (2006).
    [PDF]
  • Energy decay of rotating turbulence in confined geometry
    C. Morize and F. Moisy, Phys. Fluids 18, 065107 (2006).
    [Abstract | PDF]
  • Decaying grid-generated turbulence in a rotating tank
    C. Morize, F. Moisy and M. Rabaud, Phys. Fluids 17 (9), 095105 (2005).
    [Abstract | PDF]
  • Energy spectrum in rotating turbulence
    F. Moisy, C. Morize and M. Rabaud, XXIst ICTAM Conference, Warsaw, CD-ROM ISBN 83-89697-01-1 (2004).
    [PDF]


Last modification: November 13 2012, 15:27:40.