1.How to set thickness from zero to maximum.....2.How we will decide Free stream velocity and Raynolds number for different type of flow..For example compressible flow ,incompressible flow,subsonic flow supersonic flow..3.How we will decide boundary condition for flat plate in case of open channel.Questions 2 and 3 are for video 10 ,9
Hello every one, using this tutorial with my OF 2.1 i've got the following issue once i executed the "snappyHexMesh -overwrite"if you know how to solve it, please help me.// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //Create timeCreate mesh for time = 0Read mesh in = 1.234 sOverall mesh bounding box : (-0.03 -0.03 -0.03) (0.03 0.03 0.01)Relative tolerance : 1e-006Absolute matching distance : 9.38083e-008Reading refinement surfaces.Read refinement surfaces in = 0.204 sReading refinement shells.Refinement level 3 for all cells inside refineHoleRead refinement shells in = 0 sSetting refinement level of surface to be consistent with shells.Checked shell refinement in = 0.125 sReading features.Refinement level 0 for all cells crossed by feature "flange.eMesh" (767 points,776 edges).Detected 18 featurePoints out of 767 on feature flange.eMeshRead features in = 0.031 sDetermining initial surface intersections-------------------------------------------> FOAM FATAL ERROR:Number of cells in mesh:8000 does not equal size of cellLevel:35656This might be because of a restart with inconsistent cellLevel. From function hexRef8::getLevel0EdgeLength() const in file polyTopoChange/polyTopoChange/hexRef8.C at line 357.FOAM aborting
hello every one, i ask you for a problem with the zip files downloaded, my command blockMesh work correctly, but it dont work, and show me this messageUsage: surfaceFeatureExtract [OPTIONS] <surface> <output set>options: -case <dir> specify alternate case directory, default i -closeness <scalar> span to look for surface closeness -deleteBox <((x0 y0 z0)(x1 y1 z1))> remove edges within specified bounding box -featureProximity <scalar> distance to look for close features -includedAngle <degrees> construct feature set from included angle [ -manifoldEdgesOnly remove any non-manifold (open or more than faces) edges -minElem <int> remove features with fewer than the specifi edges -minLen <scalar> remove features shorter than the specified -noFunctionObjects do not execute functionObjects -set <name> use existing feature set from file -subsetBox <((x0 y0 z0)(x1 y1 z1))> remove edges outside specified bounding box -writeObj write extendedFeatureEdgeMesh obj files -writeVTK write extendedFeatureEdgeMesh vtk files -srcDoc display source code in browser -doc display application documentation in browse -help print the usageextract and write surface features to fileUsing: OpenFOAM-2.1 (see www.OpenFOAM.org)Build: 2.1-88b2f2ae3a0b--> FOAM FATAL ERROR:Wrong number of arguments, expected 2 found 0FOAM exitingThen the command "snappyHexMesh -overwrite" will not work as i hopePlease help me.
I am trying to use snappyHexMesh utility to generate hex meshes. I have generated base mesh using blockMesh command and surfaceFeatureExtract command is also executed correctly on the generated .stl file. However, when I try to execute 'snappyHexMesh -overwrite' command I get the following error"Point (x y z) is not inside the mesh or on a face or edge." According to my geometry definition, the mentioned point (x y z) should lie inside the region. What is the cause of this error and how to rectify this problem?
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Outline:Generating mesh using snappyHexMesh utility Problem specification About the solver File structure of flange Meshing the geometry by snappyHexMesh Solving Paraview visualization Result
Generating mesh using snappyHexMesh utility Problem specification About the solver File structure of flange Meshing the geometry by snappyHexMesh Solving Paraview visualization Result
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