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Is it possible to use unstructured Cartesian grid for OpenFOAM

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Old   April 9, 2018, 04:05
Question Is it possible to use unstructured Cartesian grid for OpenFOAM
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Hi I am beginner for CFD and OpenFOAM

I am very curious the possibility of using unstructured Cartesian meshes (as shown in the picture) in OpenFOAM




what software should I use to generate this type mesh???
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Old   April 9, 2018, 08:23
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Hello Eric,
you can create unstructured grids using gmesh. A structure as shown in your post can be created by OpenFOAM if you snappyHexMesh and a suitable stl. file to generate the mesh.
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Old   May 9, 2018, 17:54
Default snappyHexMesh and laplacianFoam
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Hello!

I'm trying to solve the problem of thermal conductivity using, while using the snappyHexMesh. When creating a grid, 5/10 folders are created, in which the grid is stored. If I run the LaplacianFoam utility (on a uniform grid), there are also folders 5/10/15, which store the solution at different times. Accordingly, when I use the LaplacianFoam utility with snappyHexMesh, a conflict arises. How can I get rid of it?
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Old   May 10, 2018, 03:05
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Quote:
Originally Posted by voronok95 View Post
Hello!

I'm trying to solve the problem of thermal conductivity using, while using the snappyHexMesh. When creating a grid, 5/10 folders are created, in which the grid is stored. If I run the LaplacianFoam utility (on a uniform grid), there are also folders 5/10/15, which store the solution at different times. Accordingly, when I use the LaplacianFoam utility with snappyHexMesh, a conflict arises. How can I get rid of it?
You need to copy the polyMesh folder from the last snappHexMesh timestep into your constant/ folder. You can then delete the sHM timesteps and proceed with your simulation.
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