Planing boat simulation with InterDyMFoam and force ramp for make it stable

EmaManu · May 10, 2018, 13:45

Dear Fauster,

I have done other simulations and finally I found the best way is first simulation with interFoam as you said, and the second with interDymFoam without the ramp and without the dampers

Best regards!

vava10 · March 15, 2021, 07:39

Hey,

Code:

restraints
{
    translationDamper
    {
        sixDoFRigidBodyMotionRestraint linearDamper;
        coeff         8596;
    }
    rotationDamper
    {
        sixDoFRigidBodyMotionRestraint sphericalAngularDamper;
        coeff         11586;
    }
}

I checked the case folder in the dropBox. it is a really good work.
I am trying to simulate something similar using kayak and my ship is sinking. I did not change the above value and I am not sure , may be that is the reason. How are these value calculated?

can you please help me?

Thanks In advance

vava10 · March 16, 2021, 13:54

Hey,

I am really new to ship simulation CFD and OpenFOAM

how do you calculate the restrain coefficients?

March 15, 2021, 07:39	restraints and constraints	#22
vava10 Member Deutschland Join Date: Sep 2020 Posts: 69 Rep Power: 7	Hey, Code: restraints { translationDamper { sixDoFRigidBodyMotionRestraint linearDamper; coeff 8596; } rotationDamper { sixDoFRigidBodyMotionRestraint sphericalAngularDamper; coeff 11586; } } I checked the case folder in the dropBox. it is a really good work. I am trying to simulate something similar using kayak and my ship is sinking. I did not change the above value and I am not sure , may be that is the reason. How are these value calculated? can you please help me? Thanks In advance Kil likes this.

March 16, 2021, 13:54	restraints	#23
vava10 Member Deutschland Join Date: Sep 2020 Posts: 69 Rep Power: 7	Hey, I am really new to ship simulation CFD and OpenFOAM how do you calculate the restrain coefficients? Kil likes this.

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May 10, 2018, 13:45		#21
EmaManu New Member Emanuele Ponzano Join Date: Feb 2018 Posts: 15 Rep Power: 9	Dear Fauster, I have done other simulations and finally I found the best way is first simulation with interFoam as you said, and the second with interDymFoam without the ramp and without the dampers Best regards!