Assignment 1 Florian Vesting 2012-09-07 Florian Vesting - PowerPoint PPT Presentation

icoFoam interFoam simpleFoam Utility Assignment 1 Florian Vesting 2012-09-07 Florian Vesting Assignment 1 2012-09-07 1 / 11

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 and fine 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 Florian Vesting Assignment 1 2012-09-07 3 / 11

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 Florian Vesting Assignment 1 2012-09-07 4 / 11

icoFoam interFoam simpleFoam Utility icoFoam — Cavity Grade To the left, showing the generated graded grid To the right, applying the meshQuality filter with the maximumEdgeRatio Utilies: mapFields -consistent , blockMesh Florian Vesting Assignment 1 2012-09-07 5 / 11

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: Florian Vesting Assignment 1 2012-09-07 6 / 11

icoFoam interFoam simpleFoam Utility InterFoam — damBreak Dambreak at the initial time step using HSV Color Space Dambreak at the last time step of 2 seconds. Time visualization with AnnotateTime , changing the format to %3.2f Florian Vesting Assignment 1 2012-09-07 7 / 11

icoFoam interFoam simpleFoam Utility InterFoam — damBreakFine Decomposition of the domain for parallel computations. clip filter in the foreground showing the scalar value of alpha1 at different time steps. Florian Vesting Assignment 1 2012-09-07 8 / 11

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 , setFields Utilies for DambreakFine: blockMesh , setFields and desomposePar Florian Vesting Assignment 1 2012-09-07 9 / 11

icoFoam interFoam simpleFoam Utility SimpleFoam — pitzDaily Streamlines at the converged The movie shows the development of iteration 765. the kinetic energy k over the The streamlines are created with different iterations. streamTracer . However, to get the To show the iteration no. I used contour of the geometry behind the AnnotateTime . The animated gif is streamlines I created a silce and created with convert command. colored it with the solid color. Utilies: blockMesh Florian Vesting Assignment 1 2012-09-07 10 / 11

icoFoam interFoam simpleFoam Utility Utility — Mesh manipulation http://www.openfoam.com/features/mesh-manipulation.php http://openfoamwiki.net/index.php/RotateMesh Rotates the mesh and fields from the direcion n1 to the direction n2 On the damBreak example: rotate the mesh-axis from parallel to X , to a diagonal orientation rotateMesh "(1 0 0)" "(1 -1 0)" Florian Vesting Assignment 1 2012-09-07 11 / 11