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[blockMesh] Convert Two-dimensional blockMeshDict to Three-dimensions by revolution

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Old   February 23, 2018, 10:10
Default Convert Two-dimensional blockMeshDict to Three-dimensions by revolution
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Anurag
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Hi everyone,

I wrote a blockMeshDict file for a simple geometry (image attached) with 1 inlet (left) and 3 outlets (right, bottom). It took me quite some time to get the blocks and regions right and everything runs fine when I use this mesh. But now, I have to do the same simulation in a 3-D version of the same mesh.

Since this is actually a cylinder, I would have to re-write some of those blocks as O-grid blocks. This, in itself, is not such a big problem. The major problem is re-writing all of those vertices and blocks as 3D points. My question is this - since the vertices and blocking already exist in a 2D blockMeshDict, is it not possible to generate a 3D version of the same through a script using the 2D file as a template? I realize there is no easy way to do so, but any tips on how to achieve this using basic scripting on bash would be quite cool.
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Old   February 23, 2018, 11:20
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Quote:
Originally Posted by anuragm View Post
Hi everyone,

I wrote a blockMeshDict file for a simple geometry (image attached) with 1 inlet (left) and 3 outlets (right, bottom). It took me quite some time to get the blocks and regions right and everything runs fine when I use this mesh. But now, I have to do the same simulation in a 3-D version of the same mesh.

Since this is actually a cylinder, I would have to re-write some of those blocks as O-grid blocks. This, in itself, is not such a big problem. The major problem is re-writing all of those vertices and blocks as 3D points. My question is this - since the vertices and blocking already exist in a 2D blockMeshDict, is it not possible to generate a 3D version of the same through a script using the 2D file as a template? I realize there is no easy way to do so, but any tips on how to achieve this using basic scripting on bash would be quite cool.
Hi, may i ask for some opinion here? Is it a must to create multiple blocks to make a 3D hollow solid moving within a mesh. I referred to some DyM tutorials and found all are using multiple blocks. Eg: movingCone

I would b very grateful for any suggestion. Thanks
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blockmeshdict, blockmeshdict block mesh, extrude mesh, o-grid generation, revolve mesh

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