icoFoam interFoam simpleFoam Utility

Assignment 1

Florian Vesting

2012-09-07

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icoFoam interFoam simpleFoam Utility

icoFoam — Cavity

Florian Vesting Assignment 1 2012-09-07 2 / 11

icoFoam interFoam simpleFoam Utility

icoFoam — Cavity

Utilies: mapFields, blockMesh, sample

The first two figures show the differences of pressure and velocity between the coarse andfine grid along a horizontal line

The graphs were created using the sample utility and plotting with Gnuplot

The third figure shows the to cases directly in comparison within one window.

text was included in the window to distinguish the cases

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icoFoam interFoam simpleFoam Utility

icoFoam — Cavity Clipped

To the left, the initial solution from the unclipped cavity case

To the right, the solution for the changed geometry

Both figures are created using filter cellCenters and glyph

Utilies: mapFields, blockMesh

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icoFoam interFoam simpleFoam Utility

icoFoam — Cavity Grade

To the left, showing the generated graded grid

To the right, applying the meshQuality filter with themaximumEdgeRatio

Utilies: mapFields -consistent, blockMesh

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icoFoam interFoam simpleFoam Utility

icoFoam — Cavity High Re

Pressure with pressure contours (left), using contour on a slice

Streamlines using streamTracer colored with the vorticity

Utilies:

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icoFoam interFoam simpleFoam Utility

InterFoam — damBreak

Dambreak at the initialtime step usingHSV Color Space

Dambreak at the last timestep of 2 seconds.

Time visualization withAnnotateTime, changingthe format to %3.2f

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icoFoam interFoam simpleFoam Utility

InterFoam — damBreakFine

Decomposition of the domainfor parallel computations.

clip filter in the foregroundshowing the scalar value ofalpha1 at different time steps.

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icoFoam interFoam simpleFoam Utility

InterFoam — damBreak comparison

Direct comparison between the fine (left) and coarse (right) grid.

Both solutions were loaded in paraView and the coarse grid was translated.

Utilies for Dambreak: blockMesh, setFieldsUtilies for DambreakFine: blockMesh, setFields and desomposePar

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icoFoam interFoam simpleFoam Utility

SimpleFoam — pitzDaily

The movie shows the development ofthe kinetic energy k over thedifferent iterations.To show the iteration no. I usedAnnotateTime. The animated gif iscreated with convert command.

Streamlines at the convergediteration 765.The streamlines are created withstreamTracer. However, to get thecontour of the geometry behind thestreamlines I created a silce andcolored it with the solid color.

Utilies: blockMesh

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icoFoam interFoam simpleFoam Utility

Utility — Mesh manipulation

http://www.openfoam.com/features/mesh-manipulation.phphttp://openfoamwiki.net/index.php/RotateMesh

Rotates the mesh and fields from thedirecion n1 to the direction n2

On the damBreak example: rotate themesh-axis from parallel to X, to adiagonal orientation

rotateMesh "(1 0 0)" "(1 -1 0)"

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