foam-extend4.1-coherent-io/tutorials/mesh/moveDynamicMesh/circCylinder3d/constant/dynamicMeshDict

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | foam-extend: Open Source CFD                    |
|  \\    /   O peration     | Version:  3.0                                |
|   \\  /    A nd           | Web:         http://www.extend-project.de       |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "constant";
    object      dynamicMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

//- Select the type of dynamicFvMesh
dynamicFvMesh           dynamicTopoFvMesh;

//- Select the type of motionSolver
solver                  mesquiteMotionSolver;

mesquiteOptions
{
    //- Optimization metric
    optMetric               AspectRatioGamma;

    //- Objective function
    objFunction             LPtoP;

    //- Optimization algorithm
    optAlgorithm            FeasibleNewton;

    //- Termination criteria sub-dictionaries
    //- (takes default values if not specified)
    //-   Specifying an empty sub-dictionary
    //-   terminates with available options
    tcInner
    {
        absGradL2            1e-4;
        cpuTime              0.5;
    }

    // tcOuter
    // {}

    //- For composite functions, two objectives need to be specified
    // firstFunction           LPtoP;
    // secondFunction          LInf;

    //- For scaled functions, scale and objective needs to be specified
    // scaleFunction        PMeanP;
    // scale                1.5;

    //- Power value for the LPtoP objective function
    pValue                  2;
    power                   2;

    //- Specify a tolerance for the surface-smoothing CG solver
    tolerance               1e-2;

    //- Specify number of CG sweeps for surface-smoothing
    nSweeps                 2;

    //- Specify slip patches for the motionSolver
    slipPatches
    {
        sideWall;
        topWall;
    }

    //- Constrain surface mesh-motion on a specified cylinder
    cylindricalConstraints
    {
        //- Specify options per slip patch
        sideWall
        {
            axisPoint      (0.0 0.0 0.0);
            axisVector     (0.0 0.0 1.0);
            radius          1.0;
        }
    }

    //- Specify fixedValue patches for the motionSolver
    fixedValuePatches
    {
        topWall
        {
            type          angularOscillatingDisplacement;
            amplitude     -0.0125;
            //type          oscillatingDisplacement;
            //amplitude     (0 0 -0.01);
            axis          (1 0 0);
            origin        (0 0 3);
            angle0        0.0;
            omega         0.15;
            value         uniform (0 0 0);
        }
    }

    //- Specify interval for surface smoothing
    surfInterval            1;
}

//- Options for dynamicTopoFvMesh
dynamicTopoFvMesh
{
    //- Should all options be made mandatory?
    //- Useful for first-time use.
    allOptionsMandatory no;

    //- Set run-time debug level [0-5]
    // debug               0;

    //- Specify the number of threads
    threads             1;

    //- Specify re-meshing interval
    //- Negative value implies no re-meshing
    interval            1;

    //- Specify whether the length-scale field
    //- should be dumped to disk
    dumpLengthScale     false;

    //- sliverThreshold specifies the
    //- quality criteria for sliver removal.
    sliverThreshold     0.35;

    //- Should the tool attempt to remove slivers
    //- that fall below the sliverThreshold value?
    removeSlivers       false;

    //- Skip mapping step. Useful while using
    //- this tool as a pre-processor
    // skipMapping         true;

    // Toggle edgeRefinement on/off
    edgeRefinement      yes;

    //- Options for edge-bisection/collapse.
    //-   The edgeRefinement flag must be set for
    //-   the following options to have effect
    refinementOptions
    {
        collapseRatio   0.5;
        bisectionRatio  1.5;
        growthFactor    1.03;

        //- By default, existing boundary edge-lengths
        //- are used for length-scales.
        //- Length-scale can be fixed for certain patches.
        fixedLengthScalePatches
        {
            topWall     0.2;
            bottomWall  0.2;
            sideWall    0.2;
            outlet      0.2;
        }

        //- Avoid refinement on certain patches, if necessary
        noModificationPatches
        {}

        //- Set floating length-scale values on certain patches
        freeLengthScalePatches
        {}

        //- Limit lengthScales to specified values, if necessary
        // minLengthScale   0.1;
        // maxLengthScale   0.3;

        //- Field-based refinement options
        // fieldRefinement  gamma;
        // fieldLengthScale 0.005;
        // lowerRefineLevel 0.001;
        // upperRefineLevel 0.999;
        // maxRefineLevel   4;
        // meanScale        0.015;
    }

    //- If the number of modifications are to be limited, set this option
    // maxModifications   1000;

    //- Load custom libraries for metrics
    // tetMetricLibs      ("libtetMetrics.so");

    //- Tetrahedral mesh quality metric
    tetMetric          Knupp;

    //- Avoid 2-2 swapping on certain patches
    noSwapPatches
    {}
}

// ************************************************************************* //