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October 13, 2009, 07:43 |
compiling new boundary
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#1 |
New Member
Join Date: Oct 2009
Posts: 1
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Hello,
i'm new here and also quite new to openfoam and CFD in general. what i want to do: Simulate a steel pipe with hot air flow inside and air around it to figure out the thermal stress of this pipe. how i tried: I reduced it to a 2D Problem and want to simulate just the solid body. I'm not interested what happens to the air, so my plan was to use a boundary contition that calculates the heat flow on the solid surface by the temperature difference and the heattransfercoefficient. The temperature of the air can be a constant. I picked solidDisplacementFoam to solve the problem and it works fine with fixedValue or fixedGradient boundarys fo the temperature. I dit not find any boundary condition that exactly fits my problem, so i tried to modify fixedGradient which leads to... the problem: I tried to copy fixedGradient to a new folder, renamed anything in the files from fixedGradient to surfaceConvection and compile it. This dit not work. Then i tried to compile the original code with the same result. here are the error messages: surfaceConvectionFvPatchField.C:42: error: redefinition of 'Foam::surfaceConvectionFvPatchField<type>::surfac eConvectionFvPatchField(const Foam::fvPatch&, const FOAM:imensionedField<Type, Foam::volMesh>&)' surfaceConvectionFvPatchField.C:42: error: 'Foam::surfaceConvectionFvPatchField<type>::surfac eConvectionFvPatchField(const Foam::fvPatch&, const FOAM:imensionedField<Type, Foam::volMesh>&)' previosly declared here and this comes for every of these blocks (constructors if i transfered my java knowledge correcttly to c++) Has anybody an idea what im doing wrong? thanks for listening Jörg |
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