Setting up an accretion disk simulation in Astrobear 2.0

Modules and Files

These directions assume that you are able to compile a problem, in case you have never compiled AstroBEAR check the page ​How to Build AstroBEAR 2.0

In order to set up a simple accretion disk simulation proceed to select the BasicDisk problem in the modules folder, this can be done by typing the following commands in the astrobear root directory:

cd modules
ln -s BasicDisk Problem

After compilation, you need to be able to run the AstroBEAR executable, a tutorial for this procedure can be found at ​How to Run AstroBEAR 2.0 page.

Warning: It is good practice to delete profile.data from the problem folder before executing AstroBEAR for the first time, failure to do so will likely result in execution errors.

Initial Conditions

After checking that the disk module compiles and runs without any issues, you can proceed to examine problem.data contained in the BasicDisk folder.

• Scales
• Softening
• Fixed grid to AMR
• Mach Number
• MHD and Solvers