Dust in AstroBEAR - Update 2020/04/03

Objectives

  • Set up Sod Shock Tube Problem for dust
  • Properly integrate dust source routines
  • Continue with grain-grain collisions

Progress:

  • Grain-Grain Collisions: Made some progress here while I didn't have internet access would like to pause it now though to focus on the source routines from next week onwards.
  • Sod Shock Tube: The default Sod Shock Tube problem is incompatible with the dust modules so I'm trying to integrate the dust by setting up my own Sod Shock Tube using split region. It did run but due to lack of internet, I couldn't check whether it was doing the right thing and unfortunately, the starting setup looked like ​this. I will try and rectify that next and maybe reduce the problem to 1D as I don't really need 2D here.

Update:

  • Sod Shock Tube: Turns out the issue above was a) due to using 2D in global.data when problem.f90 was for 1D and b) colourmap choice. Using 1D and a different colour map I get ​this for the gas which looks alright (density cut ​here). However: While the dust is initialised it's not given any momentum at the beginning so it just remains stationary. Need to find out why the dust velocity initialisation is not triggered.

Up Next:

  • Figure out dust velocity issue for Shock Tube problem
  • I really want to get the source routine integration working next so that will be my priority over the next weeks.

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