disk_models - Sets of routines to setup three-dimensional models of accretion disks

Overview

Sets of routines to setup three-dimensional models of accretion disks in hydrostatic and centrifugal equilibrium.

Installation

You need to have git installed. In addition, you need the NumPy, SciPy and PyTables Python packages.

git clone https://github.com/djmunoz/disk_models.git

cd disk_models

sudo python setup.py install

If you do not have root permission, you might have to do

python setup.py install --user

To install the package in your $HOME/.local/

That is all!

Basic usage

To run these scripts and creat an HDF5 initial condition snapshot, follow the next steps:

1. Load module:

import disk_models as dm

2. Choose a density profile type: Choose a density profile type (see 'disk_density_profiles.py' for already implemented axisymmetric profiles),e.g., a Lynden-Bell - Pringel self-similar profile modified to have a central cavity:

sigma_type='similarity_cavity'

3. Create disk model: Create the disk model under this profile type (other parameters included)

d = dm.disk3d(sigma_type="similarity_cavity",csnd0=0.12,l=1.0,R_cav=2.5,xi=3.1,Rout=15,adiabatic_gamma=1.00001)

4. Create mesh: Create the disk mesh data structure

mesh = dm.disk_mesh3d(mesh_type="mc",Ncells=500000,fill_background=True, fill_center=True,fill_box=True,BoxSize=50)

5. Create the initial snapshot: Create an instance of the snapshot() structure, and generate a model snapshot

s = dm.snapshot()
s.create(d,mesh)

6. Save to disk: Write the snapshot to a file

s.write_snapshot(d,mesh,filename="disk.dat.hdf5",time=0)