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-   -   problem in meshing - urgent ! help please (http://www.cfd-online.com/Forums/fluent/49063-problem-meshing-urgent-help-please.html)

khairul hadi August 21, 2008 03:25

problem in meshing - urgent ! help please
 
hi all...

I a little bit problem in meshing by using GAMBIT software...

My project is need to determine laminar flow in rectangular minichannel ( 1mm x 1mm )...

after done drawing 1mm x 1mm square, then face it, then i try mesh face and choose interval count = 100, so as the result i get as this

http://img171.imageshack.us/img171/8364/1mmx1mmkm3.jpg

why it show curve at 4 corners? why this happen? how can i fix it? or it is normal so small size?

then i try meshing with same shape but this time is 1m x 1m, an as a result, i get this

http://img165.imageshack.us/img165/1...x1meternd5.jpg

its look ok this time..no curves around its 4 corner...

so anyone, please help me to fix this...or any idea? thanks for read.. best regard :)

tannemm August 21, 2008 04:28

Re: problem in meshing - urgent ! help please
 
Thats a problem with internal tolerances in gambit. As its dimensionless you may scale it up later. Or try Quad Pave instead of Quad Map.

twiti August 21, 2008 05:55

Re: problem in meshing - urgent ! help please
 
I think Tannemm got the right answer. You could mesh a 1m*1m region and scale it in FLUENT to get a 1mm*1mm modeling or something like this.

khairul hadi August 21, 2008 11:42

Re: problem in meshing - urgent ! help please
 
so i just use the 1m*1m mesh then export to fluent?


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