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Difficulty in selecting the correct Boundary Conditions for an open water channel |
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Luis Felipe Rojas
Join Date: Aug 2015
Posts: 13
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Good Afternoon , My name is Luis Rojas . I am trying to Configure my boundary Conditions on my mesh , the problem is... I have a openChannel Water open to the atmosphere and I am trying to configure my case just to see the flow and the validation of the Mesh. That's Ok ...
Here I attached the p. File of the 0 conditions /*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.3.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volScalarField; object p; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 2 -2 0 0 0 0]; internalField uniform 0; boundaryField { entrada { type zeroGradient; } salida { type zeroGradient; } muros { type zeroGradient; } superficielibre { type empty; } } // ************************************************** *********************** // HERE IS THE U. file /*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.3.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volVectorField; object U; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { entrada { type fixedValue; value uniform (37.16 0 0); } salida { type inletOutlet; value internalField; inletValue uniform (0 0 0); } muros { type zeroGradient; value uniform (0 0 0); } superficielibre { type empty; } } // ************************************************** *********************** // entrada - is inlet , Salida is outlet , Superficie Libre is the top of the channel and muros are the walls of the channel... I just need to configure the boundary conditions to the atmospheric Preassure in the freesurface but i dont know what to change on this.. That's is a empty face... Either the inlet and outlet are patches... I need help to configure the Boundary for the outlet... giving the initial conditions to OpenFoam and this obtain the results of all the channel. Thanks A lot. |
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Tags |
atmosphere, boundary conditions, freesurface, openfoam |
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