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-   -   [Immersed Boundary Method] Error with turbulence model (https://www.cfd-online.com/Forums/openfoam-solving/231984-immersed-boundary-method-error-turbulence-model.html)

ThomasLong November 25, 2020 09:54

[Immersed Boundary Method] Error with turbulence model
 
Hello everyone, I am currently using the immersed boundary solver interIbFoam with Foam-extend 4.0 to solve a question with RANS turbulence model. I have made the case according to tutorials and started the simulation. Then it comes out an error with boundary conditions of turbulence coeffeciants. The error message is showing below.
Code:

--> FOAM FATAL ERROR:

    gradientInternalCoeffs cannot be called for a genericFvPatchField (actual type immersedBoundaryEpsilonWallFunction)
    on patch ibCylinder of field epsilon in file "/mnt/g/foam/thomaschi-4.0/run/cylBumpInterIbFoam/0/epsilon"
    You are probably trying to solve for a field with a generic boundary condition.

    From function genericFvPatchField<Type>::gradientInternalCoeffs() const
    in file fields/fvPatchFields/basic/generic/genericFvPatchField.C at line 832.

FOAM exiting


Tamas December 3, 2020 13:26

Hi!


The problem relies on your boundary conditions. There is a boundary which is not consistent, so the simulation is under constrained.


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