Grid Parameters¶

The &grid namelist group defines the parameters used to set up the spatial grid; the input file can contain one or more, but only the last (tag-matching) one is used. Allowable parameters are:

x_i (default based on model grid): Inner boundary coordinate of calculation grid
x_o (default based on model grid): Outer boundary coordinate of calculation grid
w_osc (default 0): Oscillatory weighting parameter \(w_{\rm osc}\)
w_exp (default 0): Exponential weighting parameter \(w_{\rm exp}\)
w_ctr (default 0): Center weighting parameter \(w_{\rm ctr}\)
w_thm (default 0): Thermal weighting parameter \(w_{\rm thm}\)
w_str (default 0): Structural weighting parameter \(w_{\rm str}\)
dx_min (default SQRT(EPSILON(1._WP))): Minimum spacing of grid points
dx_max (default HUGE(0._WP)): Maximum spacing of grid points
n_iter_max (default 32): Maximum number of refinement iterations
resolve_ctr (default .TRUE.): Flag to resolve central evanescent region
tag_list (default '', which matches all): Comma-separated list of &mode tags to match

See the Spatial Grids section for further details, in particular a discussion of how the weighting (w_*) parameters work.