2017 MHD Workshop/vector potential
Revision as of 10:55, 4 February 2017 by 172.56.34.192 (talk)
Vector potential formalism
Quick summary:
- Implemented staggered vector potential formalism according to Etienne et al. 2012 and the IllinoisGRMHD code
- This is contained in the Zelmani branch vector_potential
- Essentially rewrote and included relevant code parts from IllinoisGRMHD and included them into GRHydro
- Removed old (dead) vector potential parts in GRHydro and made several changes to GRHydro core routines to make it work with staggered Avec and Bvec fields
- Currently compiles and only works with the cxx files/version of GRHydro
- Added initial data routine to GRHydro_InitData to initialize magnetic field configurations for the staggered Avec and Bvec fields
Next steps:
- First test runs for debugging
- Modify GRHydro's reconstruction routines to also reconstruct staggered B and velocity fields for computation of RHS of staggered Avec evolution (currently using a modified routine from IllinoisGRMHD)
- Modification of GRHydro's reconstruction routines to be coordinated with Philipp's work on new staggered CT scheme, as similar infrastructure required
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