turbulent-cloud

A spherical distribution of particles with turbulent velocity field.

The code first produces a sphere in a close-packed distribution. Then, it assigns each particle a random velocity such that the cloud has a turbulent velocity field with a given power spectrum. The default power index is npow=-4, which is consistent with the observed velocity distribution of molecular clouds (Larson 1981).

This code is under development.

Author

Felipe G. Goicovic

Usage

The basic usage is

python cloud.py -n NUM

where NUM is the total number of particles desired to represent the spherical cloud. This will produce a binary file called 'ics_cloud.dat' that works as initial conditions for GADGET (format 1).

For a complete description of parameters use

python cloud.py -h