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tutorials/basic/potentialFoam/cylinder/system/controlDict

@@ -0,0 +1,144 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "system";
+    object      controlDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+application     potentialFoam;
+
+startFrom       startTime;
+
+startTime       0;
+
+stopAt          endTime;
+
+endTime         1;
+
+deltaT          1;
+
+writeControl    timeStep;
+
+writeInterval   1;
+
+purgeWrite      0;
+
+writeFormat     ascii;
+
+writePrecision  6;
+
+writeCompression off;
+
+timeFormat      general;
+
+timePrecision   6;
+
+runTimeModifiable true;
+
+functions
+{
+    difference
+    {
+        // Load the library containing the 'coded' functionObject
+        functionObjectLibs ("libutilityFunctionObjects.so");
+        type coded;
+        // Name of on-the-fly generated functionObject
+        redirectType error;
+        code
+        #{
+            // Lookup U
+            Info<< "Looking up field U\n" << endl;
+            const volVectorField& U = mesh().lookupObject<volVectorField>("U");
+
+            Info<< "Reading inlet velocity  uInfX\n" << endl;
+
+            scalar ULeft = 0.0;
+            label leftI = mesh().boundaryMesh().findPatchID("left");
+            const fvPatchVectorField& fvp = U.boundaryField()[leftI];
+            if (fvp.size())
+            {
+                ULeft = fvp[0].x();
+            }
+            reduce(ULeft, maxOp<scalar>());
+
+            dimensionedScalar uInfX
+            (
+                "uInfx",
+                dimensionSet(0, 1, -1, 0, 0),
+                ULeft
+            );
+
+            Info << "U at inlet = " << uInfX.value() << " m/s" << endl;
+
+
+            scalar magCylinder = 0.0;
+            label cylI = mesh().boundaryMesh().findPatchID("cylinder");
+            const fvPatchVectorField& cylFvp = mesh().C().boundaryField()[cylI];
+            if (cylFvp.size())
+            {
+                magCylinder = mag(cylFvp[0]);
+            }
+            reduce(magCylinder, maxOp<scalar>());
+
+            dimensionedScalar radius
+            (
+                "radius",
+                dimensionSet(0, 1, 0, 0, 0),
+                magCylinder
+            );
+
+            Info << "Cylinder radius = " << radius.value() << " m" << endl;
+
+            volVectorField UA
+            (
+                IOobject
+                (
+                    "UA",
+                    mesh().time().timeName(),
+                    U.mesh(),
+                    IOobject::NO_READ,
+                    IOobject::AUTO_WRITE
+                ),
+                U
+            );
+
+            Info<< "\nEvaluating analytical solution" << endl;
+
+            const volVectorField& centres = UA.mesh().C();
+            volScalarField magCentres(mag(centres));
+            volScalarField theta(acos((centres & vector(1,0,0))/magCentres));
+
+            volVectorField cs2theta
+            (
+                cos(2*theta)*vector(1,0,0)
+              + sin(2*theta)*vector(0,1,0)
+            );
+
+            UA = uInfX*(dimensionedVector(vector(1,0,0))
+              - pow((radius/magCentres),2)*cs2theta);
+
+            // Force writing of UA (since time has not changed)
+            UA.write();
+
+            volScalarField error("error", mag(U-UA)/mag(UA));
+
+            Info<<"Writing relative error in U to " << error.objectPath()
+                << endl;
+
+            error.write();
+        #};
+    }
+}
+
+
+// ************************************************************************* //

tutorials/basic/potentialFoam/cylinder/system/fvSchemes

@@ -0,0 +1,55 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "system";
+    object      fvSchemes;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ddtSchemes
+{
+    default         steadyState;
+}
+
+gradSchemes
+{
+    default         leastSquares;
+}
+
+divSchemes
+{
+    default         none;
+}
+
+laplacianSchemes
+{
+    default         Gauss linear corrected;
+}
+
+interpolationSchemes
+{
+    default         linear;
+}
+
+snGradSchemes
+{
+    default         corrected;
+}
+
+fluxRequired
+{
+    default         no;
+    p               ;
+}
+
+
+// ************************************************************************* //

tutorials/basic/potentialFoam/cylinder/system/fvSolution

@@ -0,0 +1,35 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "system";
+    object      fvSolution;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+solvers
+{
+    p
+    {
+        solver          PCG;
+        preconditioner  DIC;
+        tolerance       1e-06;
+        relTol          0;
+    }
+}
+
+potentialFlow
+{
+    nNonOrthogonalCorrectors 3;
+}
+
+
+// ************************************************************************* //