AFLR2C Overview
AFLR2C is an unstructured 2D planar tria-face/quad-face mesh generation code. It uses the Advancing-Front/Local-Reconnection (AFLR) procedure to generate a 2D planar tria-face/quad-face mesh from an existing boundary edge grid. Primary input to the code is a boundary edge grid. The input boundary edge grid is defined by the coordinates and edge connectivity for a set of closed curves composed of discrete edges.
The following is a simple summary of usage with options. For more information, see Usage Summary for a summary of options and default values and Option Details for a detailed description of all options.
aflr2c [input_arg_file_name] [aflr2_param_options]
PARAMETER NAME DESCRIPTION
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PROGRAM CONTROL & I/O PARAMETERS
-File_Status_Monitor : Turn on file status monitor.
-Memory_Monitor : Turn on memory monitor.
-Memory_Monitor2 : Turn on memory monitor.
-backgen3 : Generate background grid and length-scale function data.
-build : List program version build number.
-h : List summary of input parameters.
-h_all : List summary of all input parameters.
-h_io : List summary of file I/O parameters.
-help : List documentation of input parameters.
-help_all : List documentation of all input parameters.
-help_io : List documentation of file I/O parameters.
-out : Generate an output file.
-log : Generate an output file.
-out_a : Append an output file.
-log_a : Append an output file.
-outf : Send output to a file only.
-logf : Send output to a file only.
-outf_a : Append output to a file only.
-logf_a : Append output to a file only.
-ver : List program version number.
-version : List program version information.
Help_Flag : List documentation of input parameters.
Help_UG_IO_Flag : List documentation of file I/O parameters.
Output_File_Flag : Output file flag.
-v : Use executable in specified directory.
Arg_File_Name : Input argument file name.
-arg : Input argument file name.
Input_Grid_File_Name : Case name or input grid file name.
-i -igrid -case : Case name or input grid file name.
Output_Grid_File_Name : Output grid file name or suffix.
-o -ogrid : Output grid file name or suffix.
TMP_File_Dir : Temporary file directory.
-tmp : Temporary file directory.
FLAG PARAMETERS (OFTEN USED)
-ice : Generate an interior core mesh.
-quad : Generate a mixed quad/tria-face grid.
OPTION PARAMETERS (OFTEN USED)
m_ice : Interior core (ICE) mesh flag.
STRING PARAMETERS (OFTEN USED)
BG_Case_Name : Case name for background grid and function file names.
-ib -iback -bcase : Case name for background grid and function file names.
FLAG PARAMETERS (SOMETIMES USED)
-3d_axisym : Convert 2D planar mesh to 3D axisymmetric volume mesh.
-3d_stacked : Convert 2D planar mesh to 3D stacked volume mesh.
-backgen : Generate background grid and length-scale function files.
-backgen2 : Generate a background grid and length-scale function internally.
-convert : Read input grid file and write output grid file.
-ext : Use external sizing routine.
-igen : Generate an initial triangulation only.
-met2 : Use metric space with advancing-front point placement.
-met3 : Use metric space with advancing-point point placement.
-no_back : Do not read background grid and length-scale function files.
-no_bgen : Do not re-generate the boundary edge grid to match background grid.
-no_source : Do not use sources.
-no_vol_id : Do not set volume element ID flag.
-no_vid : Do not set volume element ID flag.
-qstat : Read input grid file and generate quality statistics.
-vid1 : Set volume element region ID flag.
-vid2 : Set volume element region and BL layer ID flag.
qall : Generate 2D grid quality data for all quality measures.
qnone : Do not generate any 2D grid quality data.
OPTION PARAMETERS (SOMETIMES USED)
GQ_2D_Measure_Flag : 2D grid quality measure flag.
q : 2D grid quality measure flag.
GQ_2D_Output_Flag : 2D grid quality output flag.
malign : Metric alignment flag.
mbgen : Edge grid re-generation flag.
mesh_3d : Convert 2D planar mesh to 3D volume mesh.
mier : Isolated edge refinement flag.
mmet : Metric space flag.
msource : Source option flag.
mw_met_hist : Output flag for metric space analysis information.
nplane : Number of planes in 3D volume mesh.
tet_only : Use tet-elements only in 3D volume mesh.
NUMERIC PARAMETERS (SOMETIMES USED)
dang : Angle between planes of 3D axisymmetric volume mesh.
dz : Distance between planes of 3D stacked plane volume mesh.
NUMERIC PARAMETERS (SELDOM USED)
cdf : Distribution function multiplier.
cdfs : Distribution function exclusion zone.
FLAG PARAMETERS (RARELY USED)
-grow : Use specified growth in element size.
-grow1 : Use moderate growth in element size.
-grow2 : Use high growth in element size.
-grow3 : Use very high growth in element size.
OPTION PARAMETERS (RARELY USED)
BG_Flag : Background grid and length-scale function file flag.
Message_Flag : Message flag.
mmsg : Message flag.
mdf : Distribution function flag.
mdse : Small edge deletion flag.
melem : Maximum number of elements.
meval : External evaluation option flag.
mmetds : Metric space normal spacing flag.
mpp : Point placement flag.
mqchk : Boundary surface quality measure information output flag.
mquad : Quad face combination flag.
mrecm : Local-Reconnection flag.
mw_func : Write BG function file flag.
mw_func_type : Write BG function file flag.
mw_ice : ICE output debug mesh file flag.
nlsrpp : Maximum LSR point placement passes.
NUMERIC PARAMETERS (RARELY USED)
ang_qmax : Output face angle check maximum angle limit.
ang_qmax2 : Output face angle check usable maximum angle limit.
ang_qmin : Output face angle check minimum angle limit.
angdbe : Discontinuous boundary edge angle.
angquad1 : Maximum aligned quad face angle.
angquad2 : Maximum non-aligned quad face angle.
angquad3 : Final maximum quad face angle.
arear_qmin : Output area ratio check quality limit.
arear_qmin2 : Output area ratio check quality limit.
cdf_gap_ic : ICE gap length scale multiplier.
cdfm : Distribution function weighting factor.
cdfn_gap_ic : ICE gap minimum closest node distance factor.
cdfn_se : Small edge factor.
cdfr : Maximum geometric growth rate.
cdfrsrc : Maximum geometric source growth rate.
cdfssrc : Source distribution function exclusion zone.
csrcw : Source weight.
dfmax : Maximum distribution function.
dsdef : Metric initial normal spacing.
-ds : Metric initial normal spacing.
lsrpplim : LSR point placement limit factor.
qarear_qmin : Output quality function Q check quality limit.
qarear_qmin2 : Output quality function Q check usable limit.