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-   -   Multiple Shape Volume Mesh (https://www.cfd-online.com/Forums/fluent/68245-multiple-shape-volume-mesh.html)

trompies September 11, 2009 07:31

Multiple Shape Volume Mesh
 
I'm battling to mesh a volume that consists of prismic and quad volumes. I wanted to use cooper mesh but it couldn't work. Most examples that I've seen where they mesha vlome with different shapes they use cooper. But i think the problem is the version of Fuent software that I'm using. I'm using Fluent 6.3.26, and modeling using Gambit 2.4.6. It's just that teh examples i've seen don't indicate what software version they were using. If I were to use cooper mesh, I should identify sources, but the software version I'm using doesn't have the sources feature.

Can someone please advise what should I do?

Thanking you in advance.

Philipov September 11, 2009 07:36

Meshing with Cooper scheme needs some special points. The problem is not in the GAMBIT version... post the geometry and I'll try to help.... be aware that you need to mesh some faces with QUAD MAP for example....

trompies September 11, 2009 08:45

Thank you very much. I wanted to attach a diagram in teh original message but couldn't get an icon for attachment. Do you may be know how to attach an image when posting a thread?

Philipov September 11, 2009 09:02

Below the place you write the post there is are "Additional options"

trompies September 14, 2009 03:19

Multiple Shape Volume Mesh
 
2 Attachment(s)
Thank you very much. I've now attached the pictures of the model.

-mAx- September 14, 2009 03:57

Do you have one volume, or more?
In other words, is your geometry already splitted?
If your geometry is well splitted, gambit will automatically choose the right mesh-scheme adapted to selected sub-volume.
In your case, it should select hex-cooper

Philipov September 14, 2009 04:08

What kind of task are you going to perform?

trompies September 14, 2009 04:55

No, I only have one volume. The geometry is not split. I'm using Gambit 2.4.6, this is an older version. The lates version I've hear that it does automesh a geometry. The old versions could easily perform cooper mesh, but this version doesn't because there's no feature that allows one to identify sources. That's setbackin trying to cooper mesh this volume.

trompies September 14, 2009 04:58

I'm cooling a hot surface using microchannel heat sinks. The heat sinks have a tree-shaped structure. The coolant medium is water.

-mAx- September 14, 2009 05:13

Quote:

Originally Posted by trompies (Post 229414)
No, I only have one volume. The geometry is not split. I'm using Gambit 2.4.6, this is an older version. The lates version I've hear that it does automesh a geometry. The old versions could easily perform cooper mesh, but this version doesn't because there's no feature that allows one to identify sources. That's setbackin trying to cooper mesh this volume.

2.4.6 is the latest version of gambit, which won't be furthermore developped.
forget trying to mesh your model on the fly... you won't achieve to get a mesh even if you choose tetra cells.
You have to split your model into several basic sub-volumes which can be easily meshed with hex-cooper.
Your geometry is brick-shaped, so it won't be difficult, but you will have to spend more time, than just cliking on one button and waiting
:cool:

Philipov September 14, 2009 06:10

Quote:

Originally Posted by -mAx- (Post 229421)
2.4.6 is the latest version of gambit, which won't be furthermore developped.
forget trying to mesh your model on the fly... you won't achieve to get a mesh even if you choose tetra cells.
You have to split your model into several basic sub-volumes which can be easily meshed with hex-cooper.
Your geometry is brick-shaped, so it won't be difficult, but you will have to spend more time, than just cliking on one button and waiting
:cool:

I agree.... CFD and meshing is not so easy ... need reading...


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