SUBROUTINE physflux_MHD(ixyz, indx, iRequest, Info, q1D, f, s)

Defined In:

contrib/astro/physics/i_MHD_physfluxMUSCL.f90

Inputs:

• Integer ixyz. Current slice direction
• Integer indx. Current slice location
• Integer iRequest. Request code
• NodeInfo Info. A grid to be operated on.
• REAL(KIND=qPrec) q1D. Data along slice
• REAL(KIND=qPrec) f. Array of fluxes along slice
• REAL(KIND=qPrec) s. Array of wave speeds along slice

Description:

Performs a number of tasks depending on the value of iRequest as follows:

• Initialize - sets direction specific parameters (mu, mv, mw, mb1, mb2, mb3)
• Finalize - Calculates intercell fluxes for species tracking, as well as VanLeer advection of tracers. Also updates the contribution to emf's from the intercell fluxes.
• RequestPrimitive - converts q1D from conservative to primitive
• RequestConserved - converts q1D from primitive to conservative
• RequestFlat - sets Info%flat = 0.d0
• RequestSteep - Does nothing
• RequestProtect - Flattens interpolation where cell edge density/pressure is small
• RequestPredictor - Updates reconstructed B-fields with extra MHD source terms
• RequestFluxes - Calculates fluxes (f) from q1D in conservative form
• RequestVisc - Sets Info%visc using HCarbuncleEntropyFix
• !RequestHLLDflux - Calculates the intercell flux using the HLLD solver
• RequestEigenDecomposition - Calculates eigenvectors (Info%left, Info%right) for Roe-Averaged values of q1DL and q1DR
• RequestSidedEigenDecomposition - Calculates eigenvectors (Info%left, Info%right) for q1D
• RequestSpeeds - Calculates wave speeds (s) for q1D

Called In:

contrib/astro/physics/i_physfluxMUSCL.f90

Modules Used:

NodeInfoDef.

Files Included:

None.