Contrib icoStructFoam

UNDER CONSTRUCTION

1 Description

This solver is a hybrid of icoFoam and stressedFoam. One grid-region is an imcompressible fluid, the other is a solid. The pressure of the fluid is used to deform the solid.

2 Algorithm

At each time-step the following things are done:

1. the equations in the fluid region are solved
2. fluid pressures at the fluid/solid-interface are written as boundary equations to the solid
3. the equations for the solid are solved
4. displacements for the interface-nodes of the solid region are written to the interface-nodes of the fluid region
5. the grid of the fluid region is deformed

3 Usage

Due to the two grids the standard Utilities for pre- and post-processing (FoamX and paraFoam) can't be used. Everthing is setup with the help of a text-editor.

In order for blockMesh to work on the grid regions you've got to fool it:

ln -s region1/polyMesh/ icoStructFoamTest/constant/polyMesh
blockMesh . icoStructFoamTest
rm icoStructFoamTest/constant/polyMesh
ln -s region2/polyMesh/ icoStructFoamTest/constant/polyMesh
blockMesh . icoStructFoamTest
rm icoStructFoamTest/constant/polyMesh

To write the data of the two regions for paraview just use foamToVTK:

foamToVTK . icoStructFoamTest -mesh region1
foamToVTK . icoStructFoamTest -mesh region2

4 Example cases

Please note that none of these cases resembles anything from the real world and only server for demonstration purposes

5 Download

--Bgschaid 13:34, 11 Nov 2005 (CET)