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Problem when making a very long cylinder in 3D modeling
Posted 2010年9月27日 GMT-4 04:53 2 Replies
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Hello.
I'm using COMSOL 3.3 in VertualBox and going to make a very long 3D model (radius of 1cm and height of 800cm).
However, when i make a cylinder with this geometry, the cylinder become block, which means that circle is replaced by square.
This also happens when I make circle in 2D work plane and extrude it to z=800.
Please tell me what should I do. I attached my modeling file.
I'm using COMSOL 3.3 in VertualBox and going to make a very long 3D model (radius of 1cm and height of 800cm).
However, when i make a cylinder with this geometry, the cylinder become block, which means that circle is replaced by square.
This also happens when I make circle in 2D work plane and extrude it to z=800.
Please tell me what should I do. I attached my modeling file.
Attachments:
2 Replies Last Post 2010年9月29日 GMT-4 02:38
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Posted:
1 decade ago
Hi
I do not have a 3.3 running, but I suspect that its due to your meshing, try to mesh only the circle first with enough points alng the edge to make it look like a circle, then probably the domains will fill in for the rest
--
Good luck
Ivar
I do not have a 3.3 running, but I suspect that its due to your meshing, try to mesh only the circle first with enough points alng the edge to make it look like a circle, then probably the domains will fill in for the rest
--
Good luck
Ivar
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Posted:
1 decade ago
Thank you a lot. Actually, not meshing before extruding, but meshing after extruding was worked.
After extrude the circle to cylinder (which looks like a block), it became more and more looks like a cylinder as I refining mesh.
After extrude the circle to cylinder (which looks like a block), it became more and more looks like a cylinder as I refining mesh.