[dmschd153246]

Hello Foamers


i'm newbie in openfoam and i am struggling doing my project

what i want to do is free decay test


Rotate the object(barge shape) until a certain time (i.e., rotate it to a certain angle)
pause for a certain time, and let go



t0 > t1 rotate object
t1 > t2 Hold it in that state
t2 > t3 let go and see free decay



i try give angular momentum but it seems initial value so it is hard to give certain angle
or i try to combine solid body motion and rigid body motion but it fail



i use OF2106 version and referred interFoam/RAS/movingDTChull and interFoam/RAS/floatingObject


i try so many time and out of idea
if someone know the answer I'd appreciate it if you gave me a hint

dynamicFvMesh   dynamicMotionSolverFvMesh;

motionSolverLibs (sixDoFRigidBodyMotion);

motionSolver    sixDoFRigidBodyMotion;

patches         (hull);
innerDistance   0.3;
outerDistance   1.0;

centreOfMass    (0 0 0);
mass            1000;
momentOfInertia (166.667 416.667 416.667);
angularmomentum (0 400 0)
orientation
(
1 0 0
0 1 0
0 0 1
);

rhoInf          1;
report          on;

value           uniform (0 0 0);

accelerationRelaxation 0.4;

solver
{
    type Newmark;
}

constraints
{
    zAxis
    {
        sixDoFRigidBodyMotionConstraint line;
        direction     (0 0 1);
    }
    yPlane
    {
        sixDoFRigidBodyMotionConstraint axis;
        axis          (0 1 0);
    }
}