The following table provides a non-exhaustive list of local variables which are used in the code in a recurring manner.

C code	Fortran code	Description
cell_id	iel	Cell index
face_id	ifac	Face index
tr_dim	idimtr	Indicator for tensor perodicity of rotation
i_massflux	flumas	Mass flux at interior faces
b_massflux	flumab	Mass flux at boundary faces
i_visc	viscf	at interior faces for the r.h.s.
b_visc	viscb	at border faces for the r.h.s.
rhs	smbrp	Right hand side

Local naming convention for fields (Fortran and C)

Rules have been established for local names denoting fields, depending on their nature. The convention, applying both in Fortran and in C, is as follows:

• The first letter of the name indicates the location at which the field values are defined:
  • c for values at the cell centers.
  • i for values at the interior faces.
  • b for values at the boundary faces.
• The next three letters indicate if the field is a variable (at the current time step or the previous time step) or a property:
  • var for variables at the current time step.
  • vara for variables at the previous time step.
  • pro for properties.
• An underscore _ follows.
• Finally, the short name of the variable/property is specified. This short name is built from the variable/property Fortran index, removing the i at the beginning of the word.

The following examples illustrate this convention:

cvar_pr: Values of the variable pressure field defined at the cell centers, at the current time step.
cvara_pr: Values of the variable pressure field defined at the cell centers, at the previous time step.
cpro_cp: Values of the property specific heat defined field at the cell centers.