Introduction
Previous versions included a number of useful utilities such as Co
and Mach etc and also a foamCalc utility. However, the number of
such utilities quickly exploded and caused a large amount of code
duplication, since the function is often also needed during simulation
as well. To solve this problem, many utilities were converted into
function objects (which allows their use during simulation) and a
standalone postProcess utility was added to dispatch functions
objects.
When function objects depend on solver fields, the new solver
-postProcess option is used instead, which substitutes
an alternative solver time-loop to execute the function objects.
Remapped names
The foamCalc and foamExecFlowFunctionObjects have been superceded
by the postProcess utility (see postProcess -help) as well as a
solver -postProcess option.
This table assists with mapping standalone or foamCalc names to
postProcess:
| Old | postProcess |
|---|---|
| Lambda2 | postProcess -func Lambda2 |
| Q | postProcess -func Q |
| enstrophy | postProcess -func enstrophy |
| flowType | postProcess -func flowType |
| patchAverage | postProcess -func 'patchAverage(name=inlet,p)' |
| patchIntegrate | postProcess -func 'patchIntegrate(name=inlet,p)' |
| probeLocations | postProcess -func 'probes(p, U)' |
| probeLocations | postProcess -func probes" |
| ptot | postProcess -func 'totalPressureCompressible(rho,U,p)' |
| ptot | postProcess -func 'totalPressureIncompressible(U,p)' |
| streamFunction | postProcess -func streamFunction |
| vorticity | postProcess -func vorticity |
| wallGradU | postProcess -func 'grad(U)' |
| wallHeatFlux | postProcess -func wallHeatFlux |
| wallShearStress | postProcess -func wallShearStress |
| wdot | postProcess -func XiReactionRate |
| writeCellCentres | postProcess -func writeCellCentres |
This table assists with mapping foamExecFlowFunctionObjects names to
the solver -postProcess option:
| Old | Example solver -postProcess equivalent |
|---|---|
| Co | pimpleFoam -postProcess -func CourantNo |
| Mach | sonicFoam -postProcess -func MachNo |
| Pe | pimpleFoam -postProcess -func PecletNo |
| R | simpleFoam -postProcess -func R |
| createTurbulenceFields | simpleFoam -postProcess -func 'turbulenceFields(R, omega)' |
| stressComponents | simpleFoam -postProcess -funcs '(R components(turbulenceProperties:R))' |
| yPlus | simpleFoam -postProcess -func yPlus |
The replacement for sample behaves slightly differently.
postProcess -func sampleTo re-use an existing 'sampleDict' file, simply add the following entries:
type sets;
libs ("libsampling.so");and run
postProcess -func sampleDictCopyright (C) 2019-2020 OpenCFD Ltd.