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September 17, 2012, 11:34 |
how can mesh this geometry ?
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#1 |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
Hi all , sorry for this question , i am new in ICEM ...
how can mesh this geometry ? triangular channel in rectangulat solid , water inside the triangular channel ... |
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September 17, 2012, 11:43 |
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#2 |
Senior Member
Stuart Buckingham
Join Date: May 2010
Location: United Kingdom
Posts: 267
Rep Power: 25 |
Are both domains fluid? Ie the entire box minus the triangular prism is one domain and the triangular prism is a second domain?
The boxminus the triangular prism is the more interesting of the domains. There are two different topologies that spring to mind. The choice really comes down to your actual model; what surfaces are inlets/outlets/walls etc.? These will dictate the flow directions, then you can choose a mesh topology that aligns itself best with this. The first potential topology is a simple 3D block split three times along the length, and the assosiate vertices to the corners of the triangle The other potential topology is a C grid arond the triangular prism propogated out to the far walls. This will give you better alignment if the triangle is a source or a sink. Stu |
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September 17, 2012, 12:11 |
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#3 |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
yes the entire box minus the triangular prism is one domain( solid ) and the triangular prism is a second domain( fluid)
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September 17, 2012, 21:04 |
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#6 |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
thanks Far.... I did this blocks but the mesh quality appeared poor , especially at the corner of triangular prism ...
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September 17, 2012, 23:00 |
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#8 | |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
Quote:
thanks ali .... can explain to me how you take the block for tringular prism ?? i mean how to devide the geometry to 5 blocks ( one of them to triangular prism ) ...... thank you so much .. |
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September 17, 2012, 23:07 |
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#9 |
Super Moderator
Ghazlani M. Ali
Join Date: May 2011
Location: Tokyo, Japan
Posts: 1,385
Blog Entries: 23
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take a look at this video:
http://www.youtube.com/watch?v=InyeCmEuUVM y-grid is created, also some vertices are merged. everything you need is in this video. time to go to sleep... see you tomorrow |
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September 17, 2012, 23:09 |
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#10 | |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
Quote:
thank you so much my bro ..... good night ... |
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September 18, 2012, 06:19 |
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#12 |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
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September 18, 2012, 11:39 |
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#13 |
Super Moderator
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September 18, 2012, 11:41 |
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#14 | |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
Quote:
thank you so much ... |
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September 18, 2012, 23:18 |
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#16 |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
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September 18, 2012, 23:24 |
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#17 |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
when i finish making mesh by ICEM with fluid and solid i read it by fluent , but in fluent only one zone appear ( solid ) why ???
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September 19, 2012, 01:06 |
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#18 |
Super Moderator
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Because you don't have the fluid region!!!
Right click on the parts then choose the last option (blocks). Rename to fluid and select the fluid blocks (blocks in Y-grid). Recreate premesh and convert to mesh. After that export the mesh and import into Fluent. You are done. |
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September 19, 2012, 01:17 |
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#19 | |
Senior Member
ahmad
Join Date: Feb 2012
Posts: 101
Rep Power: 14 |
Quote:
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September 19, 2012, 02:20 |
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#20 | ||
Super Moderator
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Quote:
Here I am quoting one of the Simon's post regarding quality. http://www.cfd-online.com/Forums/ans...rism-mesh.html post # 15 Quote:
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