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Problems in immersedboundary method using icoIbFoam in of-extend4.0 |
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July 13, 2017, 10:28 |
Problems in immersedboundary method using icoIbFoam in of-extend4.0
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Dong Zhang
Join Date: Dec 2016
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I want to simluate a flow around Naca0012 foil using IB method in of-extend-4.0. The case is 2D and the Z direction length of the mesh is same with the Naca foil in the .stl file. When I run potentialIbFoam, it encounters "Intersection point is not on symmetry plane ".
In the immersedBoundaryFvPatch.C at line 1053, it says if ( mesh_.nGeometricD() < 3 && mag(ibCellCentres[cellI].z() - ibPoints[cellI].z()) > SMALL ) { WarningIn ( "immersedBoundaryFvPatch::makeIbPointsAndNorma ls() const" ) << "Intersection point is not on symmetry plane " << nl << "C = " << ibCellCentres[cellI] << " D = " << ibPoints[cellI] << nl << "for 2-D geometry. Adjusting" << endl; But some of the ibCellCentres[cellI].z() = ibPoints[cellI].z() =0.05 in my case. Can you give me some help? Thank you very much! Create time Create mesh for time = 0 SIMPLE: no convergence criteria found. Calculations will run for 3 steps. Create immersed boundary cell mask Create immersed boundary face mask Found immersed boundary patch 0 named ibCylinder External flow Number of IB cells: 774 Reading field p Reading field U Calculating potential flow --> FOAM Warning : From function immersedBoundaryFvPatch::makeIbPointsAndNormals() const in file immersedBoundaryFvPatch/immersedBoundaryFvPatch.C at line 1053 Intersection point is not on symmetry plane C = (-9.14326e-06 -0.00767303 0.05) D = (0.00163822 -0.00699302 0.0500001) for 2-D geometry. Adjusting --> FOAM Warning : From function immersedBoundaryFvPatch::makeIbPointsAndNormals() const in file immersedBoundaryFvPatch/immersedBoundaryFvPatch.C at line 1053 Intersection point is not on symmetry plane C = (-9.14326e-06 -0.00461139 0.05) D = (0.000689702 -0.00444315 0.05) for 2-D geometry. Adjusting --> FOAM Warning : From function immersedBoundaryFvPatch::makeIbPointsAndNormals() const in file immersedBoundaryFvPatch/immersedBoundaryFvPatch.C at line 1053 Intersection point is not on symmetry plane C = (-9.14326e-06 -0.00154975 0.05) D = (0.000139054 -0.00153711 0.05) for 2-D geometry. Adjusting ...... |
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foam-extend, icoibfoam, immersedboundary |
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