Extracting profiles with mb_prof

The post-processor mb_prof can be used to extract profiles of flow quantities along grid-index directions.

% mb_prof.exe [-fp parameter_file] [-fg grid_file]
              [-fs solution_file] [-fo output_file]
              [-rb] [-rsplit] [-input-format]
              [-t time] [-logrho] [-logp]
              [-xline jb ix [-xline jb ix ...]]
              [-yline jb iy [-yline jb iy ...]]
              [-streamline x y ds nstep [-streamline x y ds nstep...]]
              [-noheader]

-fp parameter_file

Input parameter file name. Default is "default.p".

-fg grid_file

Grid file name. Default is "default.g".

-fs solution_file

Flow solution file name. Default is "default.s".

-fo output_file

The extracted data is written to this file. Default is "prof.dat".

-rb

Read binary (unformatted) data from the grid and solution file. By default, ASCII formatted data will be assumed.

-rsplit

Read data from split grid and solution files. By default, data will be assumed to come from the one (unsplit) file.

-input-format

The output format shall be the shorter form required for the static profile input file. You still have to edit the file manually to add the number of data lines. By default, data will be a more complete format suitable for plotting.

-t time

Solution time that is desired. Default value is 0.0 If there are multiple times in the solution file, solutions will be read and discarded until this specified time is exceeded.

-logrho

Take log10 of density field. Default is to retain the linear density range.

-logp

Take log10 of pressure field. The default is to retain the linear pressure range.

-xline jb ix

Specify a line of cells from block jb with constant index ix.

-yline jb iy

Specify a line of cells from block jb with constant index iy.

-streamline x y ds nstep

Specify a line of cells along a streamline starting at (x, y) and incrementing with step size ds for a maximum of nstep steps. The streamline will stop if the boundary of the flow domain is reached.

-noheader

This will suppress the header comment in the data file. By default, one header comment will be written at the start of each set of cells.

1. x-coordinate in metres
2. y-coordinate
3. density in kg/m**3
4. u-component of velocity in m/s
5. v-component of velocity in m/s
6. specific internal energy in J/kg
7. pressure in Pa
8. Mach number
9. Pitot pressure in Pa
10. Temperature in degrees K
11. mass fraction of species 0
12. mass fraction of species 1 (if present)