/*--------------------------------*- C++ -*----------------------------------*\
| solids4foam: solid mechanics and fluid-solid interaction simulations        |
| Version:     v2.4                                                           |
| Web:         https://solids4foam.github.io                                  |
| Disclaimer:  This offering is not approved or endorsed by OpenCFD Limited,  |
|              producer and distributor of the OpenFOAM software via          |
|              www.openfoam.com, and owner of the OPENFOAM® and OpenCFD®      |
|              trade marks.                                                   |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "system";
    object      fvSolution;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

solvers
{
    "D|DD"
    {
        solver          PCG;
        preconditioner  FDIC;
        tolerance       1e-09;
        relTol          0.1;
    }
    "blockDD|blockD"
    {
        // Direct solver
        solver              EigenSparseLU;
    }
}

relaxationFactors
{
    // Under-relaxating the DD equation by 0.99-0.9999 can improve convergence in
    // some cases, in particular when there are solidContact boundaries
    //DEqn   0.999;
    //DDEqn   0.999;

    // Under-relaxating the DD field by 0.1-0.9 can improve convergence in some
    // cases
    D      0.9;
    DD      0.9;
}

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