5 votes
Accepted

Obstacle too thin in fluid-structure interaction, so I consider it as membrane

About your question #1: Whether something is "thin enough to be a membrane" or not is not a question of thickness. A "membrane" is an object that has no resistance to bending, just ...
Wolfgang Bangerth's user avatar
4 votes

Obstacle too thin in fluid-structure interaction, so I consider it as membrane

For comment #2 I would suggest looking into the immersed boundary (IB) method. The idea behind this method is to combine an Eulerian description of the fluid with a Lagrangian description of the solid ...
IPribec's user avatar
  • 607
3 votes

How do we implement the balance of stress on interface in ALE FSI method?

@Wolfgang Bangerth already gave a really good answer to your question and I just want to make some additions that are specific to monolithic ALE-FSI. In fluid-structure interaction, we have the ...
Julian Roth's user avatar
2 votes

How do we implement the balance of stress on interface in ALE FSI method?

You deal with it in the usual way: In the derivation of the weak form, at some point or other you integrate by parts and obtain an integral over the interface between the two parts of the domain. In ...
Wolfgang Bangerth's user avatar
2 votes
Accepted

Is the weak form on this book about a level set FSI problem wrong?

I find the problem, we can't absorb the gradient of the development of the divergence of in the force term into the pressure, we need to keep the identity matrix while deriving the weak form, then ...
吴yuer's user avatar
  • 193
2 votes

In level set fluid structure interaction method why can we rewrite the elastic force in this form while there is no shear force?

Notice two things: $\nabla \left(E \left( \left| \nabla \phi \right| \right) \right) = E'(|\nabla\phi|)\nabla \left| \nabla\phi \right|$ $\nabla \left( E' \left( \left| \nabla \phi \right| \right) \...
Sthavishtha Bhopalam's user avatar
1 vote

Which algorithms(paper) should be reproduced by a student to enter the field of computational fluid-structure interaction?

Computational fluid-structure interaction is challenging endeavour. The type of coupling algorithm you need to employ depends on the type of the problem you want to solve. It is important to ...
Chenna K's user avatar
  • 934

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