# Movies and data

## High Prandtl number MHD flows, or "viscous-damped turbulence".

The study of the inertial range in high Prandtl compressible MHD is a challenge,
because resistive scale is not at usual L/Rm but at L/Rm^{1/2}.
It is important regime which happens in partially ionized ISM. For example,
in molecular clouds it could span the range of scales of several orders of
magnitude.
In order to supplement the results of Cho, Lazarian, Vishniac (2002)
for incompressible high Prandtl turbulence with hyperresistivity,
we conducted both low-beta and high-beta compressible simulations
of such flows. We call it turbulence, even though Re is of the order of 1,
because of two reasons. We imitate turbulence at scales larger than our
simulation box with stochastic driving. And we know that both magnetic
nd kinetic spectra do not drop sharply below Re=1.

We present movies of evolution of the one slice of the cube, one
direction being along mean magnetic field. In both cases resolution
is 512^{3}, resistivity is numerical and viscosity is
important at driving scale. These are MPEG movies of around 3Mb.

Low beta (beta=1/5):

High beta (beta=5):

## Normal compressible MHD turbulence.

For comparison we have movies for normal beta=1, Pr=1, 512^{3}
compressible turbulence. Mach number at driving scale is around 1.

## High Mach turbulence, small scale dynamo

Here are 256^{3} datacubes of small initial magnetic field forced
turbulence, evolved for some time, in the final state Ma=2.6, Ms=5.5.
There are 8 files of 64Mb each, most suitable to read for a calculations
on a cluster. We have three types of code to read it:

Datafiles (64Mb each):
1
2
3
4
5
6
7
8

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