Dust in AstroBEAR - Update 2019/11/04

Objectives

  • Fix problems with collisional drag routine (dqdt too large)
  • Set up setup for SN shock CSM/ISM intreactions

Progress:

  • Drag Advection Bug: The way I was using the routine implied that each collision between a dust grain and a gas particle is taking place with a proton. However, the gas is ionised so many collisions should be with electrons. Currently implementing an ionisation subroutine for oxygen and altering the drag routine to take this into account
  • Have set up a smooth and clump version of the SN shock CSM interaction model (aiming to simulate 1987A)

Videos:

Issues:

  • Numerical artefacts at boundaries → Discussion outcome: unavoidable though higher resolution might improve it

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