the number of charge states
specifies, on the next line, a label for the run
specifies a block of basic parameters.
specifies a block of boundary conditions
specifies a block of transport coefficients
atomic charge, nuclear charge, atomic mass and atomic charge squared; this data should match that given in b2ai.dat. Starting with code version 01.001.024, an alternative means of describing the plasma species and filling out the b2cmpa block is provided, in order to allow for bundling of charge states, when running cases with high-Z species. The relevant description is then minimum atomic charge of the stage, maximum atomic charge of the stage, nuclear charge, and atomic mass; this data should match that given in b2ai.dat The code can accept indifferently both types of input and makes the appropriate self-consistency checks. It is not permitted to bundle neutral and ionized species together.
specifies the number of regions where boundary conditions will be specified the 'south' boundary is broken into three pieces with one quarter of the cells in the first region, half of the cells in the second, and the remaining quarter in the third region (Western target private flux, core, Eastern target private flux). This is geometry-dependent information the code will check against the mesh connectivity and return an error if the two do not match the 'north', 'west' and 'east' are not broken up, and correspond to the SOL boundary, inner (outer) target and outer (inner) target, respectively for lower (upper) single-null topologies. For double-null cases, the north boundary should be split into two sections.
one block for each of the regions containing; the immediately following line being the region dentifier
boundary conditions for density (1 line per species)
boundary conditions for parallel momentum (1 line per species)
ion/neutral (or "atomic") temperature/energy boundary condition (1 line per species)
electron temperature/heat flux boundary condition
boundary condition for the electric potential equation
recycling coefficients (1 line per species)
[unused]
[unused] (1 line per species)