Re: [Users] question about MHD tests for GRHydro

Hi

2011/10/19 Bruno Giacomazzo bruno.giacomazzo@jila.colorado.edu:

I imagine you are using McLachlan for the Einstein equations, but what are the other differences? I presume you are also using PPM+HLLE. There is a  difference between C2P in GRHydro and Whisky, but the rest should be similar I presume.

Additionally, McLachlan+GRHydro requires spatially varying beta driver condition to prevent the instability at coarse grid boundaries, and it also requires hydroexcision to be turned on after black hole formation. I heard from Luca as well as from your literatures that these are not required for Whisky+BSSN_MoL. Luca also checked that my grid setup is almost identical with yours.

Cheers,

Hee Il