M. Carlo Cossu

Directeur de recherche CNRS

Coordonnées

LHEEA / DAUC École centrale de Nantes B.P. 92101, F-44321 NANTES Cedex 3, France

Mail
Carlo.Cossu@ec-nantes.fr

Discipline(s) enseignée(s)

  • 2012-2016 : Instabilities and Turbulence MEC555. École polytechnique.
  • 2000-2011 : Introduction to hydrodynamic instabilities MEC631. Master in Fluid Mechanics, M2, École polytechnique.
  • 2009 : Constrained optimization. Summer school on flow control and optimization, Linné Flow Centre graduate school, KTH Stockholm
  • 2006-2010 : Aérodynamique & Hydrodynamique MEC594, stages d’option. École polytechnique.
  • 2005-2011 : Mécanique des milieux continus MEC431, petites classes. École polytechnique.
  • 2002-2005 ; Hydrodynamic instabilities in open flows. 50% with Patrick Huerre. Master in Fluid Mechanics, M2, École polytechnique.
  • 2005 : Topics in Scientific Computing CS28501. 33% with R. Pierrehumbert. Ordinary Differential Equations MATH27301. 33% with N. Lebovitz. Applied Numerical Analysis MATH211. 33% with R. Scott (2005). Undergraduate, Paris Applied & Computational Mathematics Winter Program. University of Chicago.

Thèmes de recherche

Stabilité hydrodynamique, contrôle d’écoulements, dynamique des écoulements turbulents.

Activités / CV

1997 PhD Università La Sapienza (Roma)
1999-2009 Chargé de recherche CNRS, LadHyX, École polytechnique (Palaiseau)
2005-2017 Professeur chargé de cours, Dép. Mécanique, École polytechnique
2009-2017 Directeur de recherche CNRS, IMFT (Toulouse)

Informations complémentaires

Publications (depuis 2009)
  •     C. Cossu & Y. Hwang. Self-sustaining processes at all scales in wall-bounded turbulent shear flows. Phil. Trans. R. Soc. A. 375:20160088, 2017.
  •     A. Riols, F. Rincon, C. Cossu, G. Lesur, G. I. Ogilvie & P.-Y. Longaretti. Magnetorotational dynamo chimeras.Astronomy & Astrophysics 598 :A87.1-A87.12, 2017.
  •     M. Marant, C. Cossu & G. Pujals. Optimal streaks in the wake of a blunt-based axisymmetric bluff body and their influence on vortex shedding. C. R. Mécanique. 345:378-385, 2017.
  •     Y. Hwang, A.P. Willis & C. Cossu. Invariant solutions of minimal large-scale structures in turbulent channel flow for Re_\tau up to 1000. J. Fluid Mech., 802:R1.1-R1.13, 2016.
  •     S. Rawat, C. Cossu & F. Rincon. Travelling-wave solutions bifurcating from relative periodic orbits in plane Poiseuille flow. C. R. Mécanique, 344:448-455, 2016.
  •     S. Rawat, C. Cossu, Y. Hwang & F. Rincon. On the self-sustained nature of large-scale motions in turbulent Couette flow. J. Fluid Mech., 782:515-540, 2015.
  •     A. Riols, F. Rincon, C. Cossu, G. Lesur, G. I. Ogilvie & P.-Y. Longaretti. Dissipative effects on the sustainment of a magnetorotational dynamo in Keplerian shear flow. Astronomy & Astrophysics., 575, A14.1-A14.7, 2015.
  •     G. Del Guercio, C. Cossu & G. Pujals. Optimal streaks in the circular cylinder wake and suppression of the global instability. J. Fluid Mech., 752:572-588, 2014.
  •     C. Cossu. On the stabilizing mechanism of 2D absolute and global instabilities by 3D streaks. ArXiv Fluid Dynamics, 1404.3191, April 2014.
  •     G. Del Guercio, C. Cossu & G. Pujals. Optimal perturbations of non-parallel wakes and their stabilizing effect on the global instability. Phys. Fluids, 26:024110, 2014.
  •     C. Cossu. An introduction to optimal control. Appl. Mech. Rev., 66:021001, 2014.
  •     G. Del Guercio, C. Cossu & G. Pujals. Stabilizing effect of optimally amplified streaks in parallel wakes. J. Fluid Mech., 739:37, 2014.
  •     S. Rawat, C. Cossu & F. Rincon. Relative periodic orbits in plane Poiseuille flow. C. R. Mécanique, 342:485-489, 2014.
  •     A. Riols, F. Rincon, C. Cossu, G. Lesur, G. I. Ogilvie, P.-Y. Longaretti & J. Herault. Global bifurcations to subcritical magnetorotational dynamo action in Keplerian shear flow. J. Fluid Mech., 731:1, 2013.
  •     J. Herault, F. Rincon, C. Cossu, G. Lesur, G. I. Ogilvie & P.-Y. Longaretti. Periodic magnetorotational dynamo action as a prototype of nonlinear magnetic field generation in shear flows. Phys. Rev. E84:036321, 2011.
  •     C. Cossu, L. Brandt, S. Bagheri & D.S. Henningson. Secondary threshold amplitudes for sinuous streak breakdown. Phys. Fluids, 23:074173, 2011.
  •     Y. Hwang & C. Cossu. Self-sustained processes in the logarithmic layer of turbulent channel flows. Letter to Phys. Fluids, 23:061702, 2011.
  •     M. Lombardi, C.P. Caulfield, C. Cossu, A.I. Pesci & R.E. Goldstein. Growth and instability of a laminar plume in a strongly stratified environment. J. Fluid Mech. 671:184-206, 2011.
  •     G. Pujals, S. Depardon & C. Cossu.Transient growth of coherent streaks for control of turbulent flow separation. Intl. J. Aerodyn. 1(3-4):318-336, 2011.
  •     J. Park, Y. Hwang & C. Cossu. On the stability of large-scale streaks in turbulent Couette and Poiseulle flows. C. R. Mécanique, 339:1-5, 2011.
  •     A.P. Willis, Y. Hwang & C. Cossu. Optimally amplified large-scale streaks and drag reduction in the turbulent pipe flow. Phys. Rev. E, 82:036321 2010
  •     Y. Hwang & C. Cossu. On a self-sustained process al large scale in the turbulent channel flow. Phys. Rev. Lett. 105:044505 2010
  •     Y. Hwang & C. Cossu. Linear non-normal energy amplification of harmonic and stochastic forcing in the turbulent channel flow. J. Fluid Mech. 664:51-73, 2010.
  •     G. Pujals, S. Depardon & C. Cossu. Drag reduction of a 3D bluff body using coherent streamwise streaks. Exp. Fluids, 49(5):1085-1094 2010.
  •      G. Pujals, C. Cossu & S. Depardon. Forcing large-scale coherent streaks in a zero pressure gradient turbulent boundary layer. J. Turbulence, 11(25):1-13 2010.
  •     Y. Hwang & C. Cossu. Amplification of coherent streaks in the turbulent Couette flow : an input-output analysis at low Reynolds number. J. Fluid Mech. 643:333-348, 2010.
  •     M. Hollands & C. Cossu. Adding streaks in the plane Poiseuille flow. C.R. Mécanique 337:179-183, 2009.
  •     G. Pujals, M. Garcia-Villalba, C. Cossu & S. Depardon. A note on optimal transient growth in turbulent channel flows. Phys. Fluids 21:015109, 2009.
  •     C. Cossu, G. Pujals & S. Depardon. Optimal transient growth and very large scale structures in turbulent boundary layers. J. Fluid Mech. 619:79-94, 2009.
Publié le 2 septembre 2017 Mis à jour le 7 novembre 2017