Workshops > 2010 Tutorial School on Fluid Dynamics: Topics in Turbulence

2010 Tutorial School on Fluid Dynamics: Topics in Turbulence

Turbulence Theory II – Dissipation

Gregory Eyink, Johns Hopkins University
Outline:  

Experimental and simulation studies of turbulent energy dissipation
Coarse-grained equations and energy-cascade
Singularities and dissipation (Onsager 1949 theorem)
Two examples:

  • Burgers equation (shocks, dissipation & cascade)
  • Kraichnan scalar model (Richardson diffusion & dissipation)
Taylor's vortex-stretching picture
  • the vortex "autodynamo", vorticity & energy cascade, possible role of vortex reconnection
Dissipation in wall-bounded flows (if time permits)
  • experiments & simulations, vortex dynamics