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August 26, 2015, 06:03 |
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#21 |
Senior Member
Aja
Join Date: Nov 2013
Posts: 496
Rep Power: 14 |
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August 26, 2015, 06:44 |
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#22 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
did you delete previous mesh (with lower mesh option)?
check my mesh, very basic mesh, but good quality Untitled.jpg From this kind of mesh you can add a BL (you don't need to refine near the body since you will have a BL)
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In memory of my friend Hervé: CFD engineer & freerider |
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August 26, 2015, 07:25 |
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#23 | |
Senior Member
Aja
Join Date: Nov 2013
Posts: 496
Rep Power: 14 |
Quote:
But in this kind of mesh, the cells have excessive aspect ratio. And the transition between the BL and the mesh is to big (thin BL and coarse general mesh). How to create the BL in this kind of mesh? I am grateful that guide me more about creating the BL in this kind of mesh. |
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August 26, 2015, 08:01 |
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#24 |
Senior Member
Aja
Join Date: Nov 2013
Posts: 496
Rep Power: 14 |
Max, I understood your mean now!
Very thanks If again I have the problem about negative volume, I post here. thanks, Best, Aja |
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August 26, 2015, 08:16 |
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#25 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
with this mesh I don't see any aspect ratio problem.
Regardind the transition between core mesh and BL, you have to play with BL thickness
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In memory of my friend Hervé: CFD engineer & freerider |
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September 2, 2015, 07:59 |
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#26 |
Senior Member
Aja
Join Date: Nov 2013
Posts: 496
Rep Power: 14 |
Hi,
I have another question about mesh in Gambit. Please see the following video(it is my work) and dbs file: http://www.4shared.com/zip/PQAiPZ0Jce/Untitled_31.html http://www.4shared.com/zip/AzdH69kib...pen_TE12-.html When ratio is greater than 1.28, the negative volume is created. Why? I want to mesh finer. Is there any adjustment that must be made in Gambit before starting the mesh? Thanks a lot, Best, Aja |
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