Difference between revisions of "Contrib icoStructFoam"
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[[Image:icoStructFoam_testDeformed.png|right|thumb|Velocity and strain]] | [[Image:icoStructFoam_testDeformed.png|right|thumb|Velocity and strain]] | ||
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| + | The two regions are: | ||
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| + | * Lower Region: channel with velocity inlet on the left and pressure outlet on the right | ||
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| + | * Upper Region: solid which is fixed at the top and free at the left and the right | ||
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| + | In the beginning both of them are of equal size and square. | ||
| + | |||
| + | Due to the higher pressure at the inlet the solid gets deformed. | ||
=== Soft thing on a stick === | === Soft thing on a stick === | ||
Revision as of 13:29, 11 November 2005
UNDER CONSTRUCTION
Contents
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:
- the equations in the fluid region are solved
- fluid pressures at the fluid/solid-interface are written as boundary equations to the solid
- the equations for the solid are solved
- displacements for the interface-nodes of the solid region are written to the interface-nodes of the fluid region
- 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
4.1 Deformable channel
The two regions are:
- Lower Region: channel with velocity inlet on the left and pressure outlet on the right
- Upper Region: solid which is fixed at the top and free at the left and the right
In the beginning both of them are of equal size and square.
Due to the higher pressure at the inlet the solid gets deformed.
4.2 Soft thing on a stick
5 Download
Case of the deformable channel
Case of the soft thing on a stick
--Bgschaid 13:34, 11 Nov 2005 (CET)
