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November 20, 2013, 13:59 |
wallShearStress not calculated
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#1 |
Senior Member
ArathoN
Join Date: Jul 2011
Posts: 137
Rep Power: 15 |
I'm studying the Backward facing step with inclined step, and i decided to mesh the geometry in Gambit. Now i'm having a problem in using the utility wallShearStress, it gives only null values of the shear in the x,y,z directions? Why? what can i do? I specified correctly the boundaries from gambit and also from the bondaries file too.
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November 20, 2013, 14:08 |
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#2 |
Senior Member
ArathoN
Join Date: Jul 2011
Posts: 137
Rep Power: 15 |
I must specify that the sampling of the wallshearstress can't be done, otherwise the variable is calculated.
Here my sample file: Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.2.2 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; object sampleDict; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // setFormat gnuplot; surfaceFormat raw; interpolationScheme cellPoint; fields ( "wallShearStress" ); sets ( lineX1 { type face; axis x; start (0 -0.1 0); end (2.5 -0.1 0); nPoints 400; } ); surfaces ( walls_interpolated { type patch; patches ( "lowerWall" ); interpolate true; } ); Code:
surfaces surfaces: Reading surface description: walls_interpolated Time = 0 --> FOAM FATAL IO ERROR: size 30 is not equal to the given value of 40 file: /home/arathon/Tesi/Cases/K-E/BackwardFacingStep-15°/0/wallShearStress.boundaryField.inlet from line 26 to line 27. From function Field<Type>::Field(const word& keyword, const dictionary&, const label) in file /home/opencfd/OpenFOAM/OpenFOAM-2.2.2/src/OpenFOAM/lnInclude/Field.C at line 236. FOAM exiting |
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