Johns Hopkins Turbulence Databases

Forced Isotropic Turbulence Dataset on 81923 Grid:

Dataset description

Forced Isotropic Turbulence Dataset on 81923 Grid:

Simulation data provenance: Georgia Tech DNS code (see README-isotropic8192 for more details).

  • Direct numerical simulation (DNS) using 81923 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 × 2π × 2π
  • Grid: 81923
  • Number of snapshots available: 6
  • Taylor-scale Reynolds number Reλ ~ 1200-1300 for snapshots 0-4, and Reλ ~ 610 for snapshot 5
  • Viscosity, dissipation, RMS velocity, and Kolmogorov scale: see README-isotropic8192
  • GetPosition is not implemented for this dataset.
Disclaimer: While many efforts have been made to ensure that these data are accurate and reliable within the limits of the current state of the art, neither JHU nor any other party involved in creating, producing or delivering the website shall be liable for any damages arising out of users' access to, or use of, the website or web services. Users use the website and web services at their own risk. JHU does not warrant that the functional aspects of the website will be uninterrupted or error free, and may make changes to the site without notice.

Last update: 7/8/2020 1:05:27 PM