Johns Hopkins Turbulence Databases

Dataset description

Forced MHD turbulence:

Simulation data provenance: JHU DNS code (see README-MHD for more details).

• Direct numerical simulation (DNS) using 1,024³ nodes.
• Incompressible MHD equations are solved using pseudo-spectral method.
• Energy is injected by using a Taylor-Green flow stirring force.
• After the simulation has reached a statistical stationary state, 1,024 frames of data with 3 velocity components, pressure, 3 magnetic field and magnetic vector potential components are stored in the database.
• The Taylor-scale Reynolds number fluctuates around R_λ ~ 186.
• 1024 timesteps are available, for time t between 0 and 2.56 (the frames are stored at every 10 time-steps of the DNS). Intermediate times can be queried using temporal-interpolation.
• A table with the spectra of the velocity, magnetic field, Elsasser variables, cross-helicity and magnetic helicity can be downloaded from this text file.
• A table with the time histories of energy and dissipation, both kinetic and magnetic, as well as of magnetic and cross helicity, can be downloaded from this text file.