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How to access forces computed by "forces" functionObject within Solver

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Old   March 6, 2024, 17:44
Default How to access forces computed by "forces" functionObject within Solver
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Pedro Almeida
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I want to access the forces calculated by the "forces" function object within my solver. I can access the specific function object with:

label forcesId = runTime.functionObjects().findObjectID("forces")
With this I can access the functionObject, which allows me to call execute() and other functions. However, I cannot find how to access the forces from this point. Is there some way to do this from within the solver. Something like:

List<Field<vector>> myForces = runTime.functionObjects()[forcesId].<something here>
Alternatively, I can possibly calculate the forces manually with the velocity fields and mesh, but I would prefer to use the functionObject if possible. If there is any other recommendation, I would be happy to hear it.

Thank you for the help in advance,
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