[home] [Personal Program] [Help]

---

Session: Atmospheric turbulence 1
Session starts: Tuesday 25 August, 10:30
Presentation starts: 10:30
Room: Room C

---

Alan Burlot ()
Benoit-Joseph Grea ()
Jerome Griffond ()
Olivier Soulard ()

Abstract:
Unstably stratified homogeneous turbulence develops at late time a self-similar dynamics characterized by an exponential growth of turbulent quantities. It is believed from recent theoretical studies that different growth rates are possible, depending on the initial distribution of energy at large scales. In order to confirm these predictions, we run both highly resolved direct numerical simulations and a spectral model based on an eddy-damped quasi-normal closure. In addition to confirming the influence of initial conditions, our study sheds light on the anisotropic structures of the self-similar regimes.