Well it would be beneficial if you would go for FVM rather than FEM because the numerical discretization of FEM shall create a complex mesh for an already complex domain. Also FEM is computationally expensive.

If you want to write your own solver to study the interaction problem, the mesh and solution method shall become very complicated. Most of the commercial solvers( Fluent, Star CCM+) use FVM solver, and that applies to most of the free solvers (OpenFoam).

To couple the FEM problem for structure with a FVM for fluid, you can use Code Saturne with Code Aster, which are freely available and are quite simple to use.

hi martin,

As in my view i suggest to go with FVM as that method have some advantages over FEM for fluid structure interaction but yeah both of them are used in specific problem area so every one have their own opinion. I try to helping out with this confusion.

The overall details between them are as :-

Discretization methods:

FEM, Finite Volume, higher order Discontinuous Galerkin (of which Finite Volume is the first level)

Equation coupling methods,

Segregated, Coupled Mass and momentum,

fully coupled Equation Formulation methods,

pressure based and density based fluids solvers,

Equation solution methods,

dont need to confuse between them if you need more information regarding that you just go through this summary of cfd which i gonna attache over here, I am sure after reading that your confusion will be solve if it wont & you have some doubt in mind then feel free to ask.

good luck

regards

S.Shukla

Here is that attache file. Check it

Well it would be beneficial if you would go for FVM rather than FEM because the numerical discretization of FEM shall create a complex mesh for an already complex domain. Also FEM is computationally expensive.

If you want to write your own solver to study the interaction problem, the mesh and solution method shall become very complicated. Most of the commercial solvers( Fluent, Star CCM+) use FVM solver, and that applies to most of the free solvers (OpenFoam).

To couple the FEM problem for structure with a FVM for fluid, you can use Code Saturne with Code Aster, which are freely available and are quite simple to use.

Thank you all for the replies!