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Mesh with internal zerothickness surfaces

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Old   September 22, 2005, 06:56
Default I'm approaching to sails compu
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Rattin Michele
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I'm approaching to sails computations.
I need to produce meshes that include zero-thickness wall surfaces (the sails).
Has anyone experience in how can be produced the initial solid model and this kind of mesh?
Thanks
Michele.
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Old   September 22, 2005, 12:41
Default You could generate a single me
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Mattijs Janssens
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You could generate a single mesh (don't know how), collect the faces into a faceSet (using the faceSet utility) and then use the splitMesh utility to locally introduce opposing patches.

Would be nice to hear if/how you managed to create the mesh.
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Old   September 22, 2005, 13:42
Default Is that like a shell mesh?
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Billy
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Is that like a shell mesh?
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Old   September 23, 2005, 03:22
Default Thanks Mattijs, I will try
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Rattin Michele
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Thanks Mattijs,
I will try to make some experiments.
For Billy: no, it is the opposite. I would like to compute the fluid flow around zero-thickness sails (with prescribed rigid geometry).

I would eventually couple the flow simulation with a sails structural behaviour (membrane for genoa and shells for more rigid sails).
In practice I need linear orthotropic constitutive laws under the hypothesis of large displacements.
The available FEM works only with 3d elements? Is the extension to these kind of elements straightforward?

Michele.
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