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Access BC variable from another file

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Old   February 14, 2022, 09:05
Default Access BC variable from another file
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UOCFD
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Hey foamers,


I am developing a customized code for lagrangian particles patchInteraction model.


I want to include a variable read from the activePressureForceBaffleVelocity BC, which is called openFraction_.


How can I call it from localInteraction.C??


Since now I have tried with:
U.mesh.boundary()[patchi].openFraction_();
U.patch().boundaryMesh()[patchi].openFraction_();

without success.


Any solution to his would be appreciated
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Old   February 14, 2022, 09:31
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Julio Pieri
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I don't know the proper way to do that, but can you access it like other dicts are called? something like

this->coeffDict().getOrDefault("openFraction", 0.001)

then you change the underlined text to your 0/U.patchName file?
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Old   February 15, 2022, 03:29
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I think that is the way to read variables from the own model file, but not from other locations like a BC...
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Old   March 7, 2022, 10:02
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By doing U.boundaryField()[patchID]:

Code:
type            activePressureForceBaffleVelocity;
cyclicPatch     baffleCyclic_half0;
orientation     1;
openingTime     0.005;
maxOpenFractionDelta 0.1;
openFraction    0;
minThresholdValue -3.78e+06;
forceBased      0;
value           uniform (0 0 0);
Output for entry U.boundaryField()[patchID].type() works fine, but not for the other variables since they are part of the derived fvPatchField, written by:

Code:
void Foam::activePressureForceBaffleVelocityFvPatchVectorField::
write(Ostream& os) const
{
    fvPatchVectorField::write(os);
      writeEntry(os, "cyclicPatch", cyclicPatchName_);
...
Any solution??
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