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How Can I Model This Bucket Problem in OpenFOAM?

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Old   March 8, 2022, 03:49
Default How Can I Model This Bucket Problem in OpenFOAM?
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I am new to OpenFOAM and I am trying to design a clock as a hobby. The clock uses two Buckets (Cylinders). Cylinder 1 has a hole at the bottom that drips water into Cylinder 2. I believe I have created the mesh .stl files in FreeCAD and I have installed OpenFOAM and paraView.

But I don't know where to go next. How can I model this problem in the files in the Constant and System folders? I understand this will be incompressible flow, and the water will have an initial velocity. Thank you
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Old   March 13, 2022, 14:44
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You should look into the interFoam solver, since you'll likely need to simulate water and air, hence two phases. Your mesh is likely easier created using blockMesh, but you can use snappyHexMesh or cfMesh.

The easiest here is cfMesh since you basically only have to input the mesh size. You need to figure out your boundary conditions and based on those assign each part of your stl different regions (not sure how to do that in freeCAD). You could try meshing it and afterwards use autoPatch or topoSet to set the boundary condtions. Or create stl files for each surface and simply add add those together. Under linux this would be cat file1.stl file2.stl > result.stl
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