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[GAMBIT] Meshing volume in between two meshed volumes |
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December 21, 2016, 05:08 |
Meshing volume in between two meshed volumes
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#1 |
New Member
Farhan Zainudin
Join Date: Feb 2016
Posts: 5
Rep Power: 10 |
Hi,
Suppose I have 3 identical volumes (to simplify, assume them as cubes 500 x 500 x 500) connected to each other in parallel (simply means 3 connected cubes in a straight line). I have already meshed the 1st and the 3rd volumes using Map scheme. But the mesh size is different. Let say the 1st volume has mesh size of 50, and the 3rd has mesh size of 100. So obviously the mesh count (or interval count in GAMBIT) will also be different for the two volumes. Now I want to mesh the 2nd volume (volume in the middle). My question is: Is there any way I can mesh this volume using Map scheme as well? Because 2 of its faces which are connected to the previous 2 volumes are already meshed with different mesh sizes. And we all know that in this case, we cannot simply use Map scheme for the middle volume. Appreciate anyone who can help/explain. Thank you. |
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January 4, 2017, 09:49 |
volume mesh using gambit
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#2 |
Member
George Corner
Join Date: Dec 2016
Posts: 30
Rep Power: 10 |
Hi friends,
I want to do volume mesh using GAMBIT but I couldn't. I did face mesh successfully but when I try to do volume mesh I faced with error. I try to do hex mesh using cooper but error told me one of faces has invalid mesh. I couldn't solve problem. please guide me. Regards |
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January 4, 2017, 09:51 |
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#3 |
New Member
Farhan Zainudin
Join Date: Feb 2016
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How does your geometry look like? Maybe I can help if you share the picture of your geometry.
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January 4, 2017, 10:32 |
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#4 | |
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George Corner
Join Date: Dec 2016
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Quote:
Thanks very much. I attached geometry. find please attachment. Regards, |
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January 4, 2017, 10:32 |
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#5 | |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
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Quote:
You can disconnect your volumes and work with interfaces. The solver will then interpolate the results on the interfaces
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In memory of my friend Hervé: CFD engineer & freerider |
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January 4, 2017, 10:36 |
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#6 | |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
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Quote:
Once all your surfaces (front) are meshed, then you will mesh the volume easily (it is just an extrusion)
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In memory of my friend Hervé: CFD engineer & freerider |
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January 4, 2017, 10:45 |
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#7 |
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George Corner
Join Date: Dec 2016
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Actually I don't want to mesh that missing parts because these are hollow. I want fluid only flow from mesh areas. this is nozzle.
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January 4, 2017, 10:48 |
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#8 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
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ah ok sorry.
Are your sure all your volumes are connected? Blue lines are refering to non connected entities Try to connect all surfaces
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In memory of my friend Hervé: CFD engineer & freerider |
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January 4, 2017, 10:52 |
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#9 |
New Member
Farhan Zainudin
Join Date: Feb 2016
Posts: 5
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Yes, as Max suggested, you need to mesh all the front faces before you can Cooper through your volume. You can either mesh the opposite faces as well, or just mesh the front faces, before you Cooper.
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January 4, 2017, 11:00 |
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#10 |
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George Corner
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January 4, 2017, 11:04 |
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#11 |
New Member
Farhan Zainudin
Join Date: Feb 2016
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Thanks for the reply Max. Okay I will try it first and see the outcome.
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January 4, 2017, 11:05 |
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#12 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
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for example in your picture the 2 bigs rectangle: if you extrude them, you will get 2 volumes.
But you will extrude 2 times the common edges from the 2 bigs rectangle. That means between the 2 extruded volumes, you will have 2 superimposed surfaces which produces 2 disconnected volumes. For fixing it, go to surface/connect/all Check also if you create3d all the volumes, just enable shaded mode on for being sure
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In memory of my friend Hervé: CFD engineer & freerider |
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January 4, 2017, 11:08 |
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#13 |
New Member
Farhan Zainudin
Join Date: Feb 2016
Posts: 5
Rep Power: 10 |
Based on my experience, error in using Copper could be because:
1. The source faces don't have the same interval count on the edges. 2. Face vertex type of the source faces are not identical. |
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Tags |
gambit, volume meshing |
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