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Hydrostatic Pressure and Gravity

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Old   May 29, 2008, 10:10
Default Good day for you OF Users!!!
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Thiago Reis Carvalho Cabral Miliante
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Good day for you OF Users!!!

I am merging several solvers in order to simulate a 2d roll damping in ships. I have successfully integrated a 3DOF movement for my ship with moving mesh by calculatin and integrating the forces and momentum. Gravity is playing its part in the calculation of these forces, but not in the fluid. Water is just flying away when it hits the ship.
I noticed that when I merged the solvers I had forgotten the gravity (- ghf*fvc::snGrad(rho)). But now there is no Hydrostatic Pressure to counter act gravity and the fluid just keeps practically static due the action of gravity pressing down.
Can someone help me on how to add hydrostatic pressure (inside the domain and as a boundary conditon). I read on the posts that OF uses a "modified pressure" which should account for everything, but then how should I use it in my case?

Thanks in advance.

T.
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