Intermittency and universality in compressible turbulence

Roberto Benzi

Department of Physics

Rome, Tor Vergata

Abstract:

In this talk I will discuss some new three dimensional numerical simulations
performed on weakly incompressible fluid at very high numerical resolutions
(1856**3) The numerical scheme is formally inviscid although subgrid
scale dissipation is acting for numerical purpose. Two main topics are
discussed: universality of anomalous exponents with respect to the
Navier-Stokes case; intermittency and statistical properties of density and
entropy fluctuations.