[GAMBIT] the problem of 3D boundary layer

hotboy · September 13, 2015, 04:31

Hello friends！
Fluid is in this geomery 11.jpg ,so I want to mesh the boudary layer ,the boudary layer is in this picture22.jpg.In the corner of the geomery the boudary is in this picture 33.jpg .My problem is that length of mesh 1 is diffent from the mesh of 2 so the quality of the volume mesh in the corner is poor ,how can I do to make the mesh have the same length ?Thank you very much !
your sincerely hotboy!

-mAx- · September 14, 2015, 01:06

control the mesh on the edges
https://www.sharcnet.ca/Software/Gam...mesh_edge_mesh

hotboy · September 14, 2015, 03:04

Dear mAx!
Thank you very much ,I'll try to do it as you tell me .

hotboy · September 14, 2015, 04:49

Quote:

Originally Posted by -mAx-

control the mesh on the edges
https://www.sharcnet.ca/Software/Gam...mesh_edge_mesh

Dear mAx!
I control the mesh on the edges ,but the result is this 992B26C54D5C5B496AB6E497E194EA0B.jpg what's the problem?

-mAx- · September 14, 2015, 08:20

you need to mesh your surfaces first

hotboy · September 14, 2015, 09:06

Quote:

Originally Posted by -mAx-

you need to mesh your surfaces first

Dear mAx!
Thank you very much for your help .I mesh the surfaces first but the problem is still exist CEDA4D0FA28BDB406009426BE47C0381.jpg. My geomery is there https://drive.google.com/folderview?...Gc&usp=sharing

-mAx- · September 14, 2015, 09:19

no problem from my side
Untitled.png
I just picked both edges and applied exponent node distribution
Else you can define a size function with edge.7 as source and your volume as attachment.
Gambit will automatically refine the mesh in this area

hotboy · September 14, 2015, 21:02

Dear mAx!
With your help I fix this problem .Thank you very much!
Best wishes for you!

September 13, 2015, 04:31	the problem of 3D boundary layer	#1
hotboy Member wanghuo Join Date: Aug 2014 Posts: 89 Rep Power: 11	Hello friends！ Fluid is in this geomery 11.jpg ,so I want to mesh the boudary layer ,the boudary layer is in this picture22.jpg.In the corner of the geomery the boudary is in this picture 33.jpg .My problem is that length of mesh 1 is diffent from the mesh of 2 so the quality of the volume mesh in the corner is poor ,how can I do to make the mesh have the same length ?Thank you very much ! your sincerely hotboy!

September 14, 2015, 01:06		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	control the mesh on the edges https://www.sharcnet.ca/Software/Gam...mesh_edge_mesh __________________ In memory of my friend Hervé: CFD engineer & freerider

September 14, 2015, 08:20		#5
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	you need to mesh your surfaces first __________________ In memory of my friend Hervé: CFD engineer & freerider

September 14, 2015, 09:19		#7
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	no problem from my side Untitled.png I just picked both edges and applied exponent node distribution Else you can define a size function with edge.7 as source and your volume as attachment. Gambit will automatically refine the mesh in this area __________________ In memory of my friend Hervé: CFD engineer & freerider Last edited by -mAx-; September 15, 2015 at 01:01.

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September 14, 2015, 03:04		#3
hotboy Member wanghuo Join Date: Aug 2014 Posts: 89 Rep Power: 11	Dear mAx! Thank you very much ,I'll try to do it as you tell me .

September 14, 2015, 21:02		#8
hotboy Member wanghuo Join Date: Aug 2014 Posts: 89 Rep Power: 11	Dear mAx! With your help I fix this problem .Thank you very much! Best wishes for you!