Johns Hopkins Turbulence Databases

Forced Isotropic Turbulence Dataset on 40963 Grid:
Dataset description

Forced Isotropic Turbulence Dataset on 40963 Grid:

Simulation data provenance: Georgia Tech DNS code (see README-isotropic4096 for more details).

  • Direct numerical simulation (DNS) using 40963 nodes.
  • Navier-Stokes is solved using pseudo-spectral method.
  • Time integration uses second-order Runge-Kutta.
  • The simulation is de-aliased using phase-shifting and truncation.
  • Energy is injected by keeping the energy density in the lowest wavenumber modes prescribed following the approach of Donzis & Yeung.
  • After the simulation has reached a statistical stationary state, a frame of data, which includes the 3 components of the velocity vector and the pressure, are generated and written in files that can be accessed directly by the database (FileDB system).
  • Domain: 2π x 2π x 2π
  • Grid: 40963
  • Viscosity ν = 1.732 x 10-4
  • Number of snapshots available: 1
  • RMS velocity: u’ = (2k/3)1/2 = 1.56853
  • Reynolds number Reλ= 610.57
  • Kolmogorov scale η = 1.3844 x 10-3
  • <ε>L1/u’3 = 0.51
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Last update: 11/4/2017 10:38:26 PM