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CompressibleInterDyMFoam with 6DOF body

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Old   January 27, 2017, 15:55
Default CompressibleInterDyMFoam with 6DOF body
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Leonard Cassady
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I'm trying to determine how to best simulate a large object hanging by a cable under water. The goal is to prescribe the motion of the top of the cable and simulate the motion of the large object as it moves through the water. The motion of the object will be large compared to the domain (20% of the length), so I worry about the mesh. Is it possible to set up a case that occasionally re-meshes as time goes on, or will the dynamic mesh be able to handle it.

My object is a complicated .stl. I normally use snappyhexmesh to generate 3D volume mesh with about 10 million cells. Is it possible to use snappy or do I need to switch to overset grids?

Can I prescribe the motion of the upper end of the cable? Maybe making the cable a very stiff spring and moving the upper end is an option?


I am running OpenFoam version 3.0, but I am willing to upgrade to version 4.1.

Regards,
Lenny

Last edited by im_lenny; January 30, 2017 at 12:32.
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Old   July 17, 2017, 10:15
Default flexible cable
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rezataheri
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hi dear
My model is a body floating in water that with flexible cables anchored.
Can OpenFoam software do the modeling of flexible cables and their transformations?
help me please
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Old   July 17, 2017, 10:33
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Leonard Cassady
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OpenFOAM does not model cables.
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Old   July 19, 2017, 05:26
Default Mooring Line
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G Grewal
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Hi Leonard and Reza,

Waves2foam has added the ability to model mooring lines 3 months ago.

https://github.com/ogoe/waves2Foam/t...es2FoamMooring

Last edited by gsg001; July 19, 2017 at 05:27. Reason: Spelling
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Old   July 19, 2017, 09:40
Default appreciation
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rezataheri
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hi sir
thank you for this gaide.
good luck
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