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[ANSYS Meshing] Structured grid over a 3D triangular prism

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Old   April 18, 2016, 18:41
Default Structured grid over a 3D triangular prism
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Bleep Skrp
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Hello,

I am meshing a 3D triangular prism, or a wedge, to study the hydraulic jump formed by using the volume of fluids (VOF) method. In order to prescribe flow with a velocity, I have to assign a volume fraction of 1 to the cells that hold water. In order to do this, I need a structured grid at least to the top of the wedge.

I'm attaching a few screenshots of what I have so far. I divided the wedge into 4 regions and attempted to use the mapped face meshing procedure. This seemed to work on the outer surfaces of the wedge and the enclosure, but when I take a cross section, the grid is unstructured.

Does anyone have a suggestion on how I can extrude the mesh, or maybe how to cast a structured grid up to the top of the wedge?
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Old   April 15, 2021, 10:09
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Mauro Killary
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hi currently i have the same issue, i must mesh a triangular prism thus to simulate a incled jet impingement, i use ansys mesh for that, how you've resolved this issue?
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Old   April 21, 2021, 08:32
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In Spaceclaim you split the body by the top surface of the wedge, then use Share topology, and then sweep the bottom part to get a structured mesh. You might get missing inflation just around the top edge, but it probably won't be a big problem if the top wedge surface has a fine resolution.
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