[peteOwens]

Hello all,


I'm currently trying to simulate a rolldampening tank for a ship. I use OpenFOAM v6 and interFoam.



My dynamicMeshDict looks as follows:

dynamicFvMesh   dynamicMotionSolverFvMesh;

motionSolver    solidBody;

solidBodyMotionFunction SDA;

    CofG        (0 0 0);
        lamda       1;
        rollAmax    0;
        rollAmin    0.03;
        heaveA      0;
        swayA       0;
        Tp          8.254;
        Q           1;
        Tpn         4;
        dTi         0.001;
        dTp         0.001;

Now I have simulated the movement and the fluid does not behave as expected at all.
It appears, that the motion of the tank has barely any exciting force on the water.


After searching for some time in the forums and in the source code I have the unanswered question if there is aproblem with me using lamda= 1?


Moreover is there a better option to limit the increase of Tpi than to make dTp very small since I had severe problems with usng anything smaller than 0,0001.


I hope my english is sufficient and since this is my first post I hope, that I posted in the right Forum?


Have a nice day and thanks in advance