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#1 |
New Member
Lorenzo
Join Date: Apr 2023
Posts: 2
Rep Power: 0 ![]() |
Hi everyone!
I'm using openFoam (lynux) to run a k eps (simpleFoam) case. I'm importing a file.stl from an external cad, to use snappyHexMesh. For this reason, I need to create a parallelepiped that contains the stl geometry, and I need to visualize it correctly. At first I was trying to run blockMesh: it creates correctly the polyMesh folder, but it doesn't generate the foam file of the parallelepiped. This is what blockMesh says in the terminal: /*---------------------------------------------------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 10 \\/ M anipulation | \*---------------------------------------------------------------------------*/ Build : 10-c4cf895ad8fa Exec : blockMesh Date : Apr 11 2023 Time : 11:30:29 Host : "lome-VirtualBox" PID : 6382 I/O : uncollated Case : /home/lome/OpenFOAM/lome-10/run/Lab_CFD/simulazioni_2023/Prova02023 nProcs : 1 sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE). fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10) allowSystemOperations : Allowing user-supplied system call operations // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Create time Reading "blockMeshDict" Creating block mesh from "system/blockMeshDict" Creating block edges No non-planar block faces defined Creating topology blocks Creating topology patches Creating block mesh topology Check topology Basic statistics Number of internal faces : 0 Number of boundary faces : 6 Number of defined boundary faces : 6 Number of undefined boundary faces : 0 Checking patch -> block consistency Creating block offsets Creating merge list . Creating polyMesh from blockMesh Creating patches Creating cells Creating points with scale 1 Block 0 cell size : i : 0.009 j : 0.007 k : 0.01 There are no merge patch pairs edges Writing polyMesh ---------------- Mesh Information ---------------- boundingBox: (-0.55 -0.07 0) (0.35 0.07 0.01) nPoints: 4242 nCells: 2000 nFaces: 8120 nInternalFaces: 3880 ---------------- Patches ---------------- patch 0 (start: 3880 size: 20) name: inlet patch 1 (start: 3900 size: 20) name: outlet patch 2 (start: 3920 size: 100) name: top patch 3 (start: 4020 size: 100) name: bottom patch 4 (start: 4120 size: 2000) name: spnw_rigth patch 5 (start: 6120 size: 2000) name: spnw_left End so apparently it generates correctly the box, but it does not create a foam file. I tried also to use a tutorial case ( for example, pitzDaily), but still it does not create the foam file when I run blockMesh. I found this discussion : http://www.cfd-online.com/Forums/ope...tml#post234151 - post #10 ; it does not help much. Thank you for your help!! Lorenzo I |
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#2 |
Senior Member
M
Join Date: Dec 2017
Posts: 692
Rep Power: 12 ![]() |
The <whatever>.foam file is just an empty file. AFAIK no utility creates it. You can just copy it from whatever tutorial/case you already have or create it yourself with the touch command in linux.
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Tags |
#blockmesh, #blockmeshdict, #openfoamcase |
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