CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > ANSYS Meshing & Geometry

[ICEM] applying inflation in vertical direction

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 2, 2011, 17:55
Default applying inflation in vertical direction
  #1
Senior Member
 
MASOUD
Join Date: Mar 2009
Posts: 102
Rep Power: 17
MASOUD is on a distinguished road
Hi,

For a 2D rectangular geometry with X=5 and Y=1, I'd like to divide it to 50 in X-direction and 10 in Y-direction with inflation just in Y-direction in order to get a mesh similar to the attached file.

I've tried patch-dep, patch-indep and autoblock surface meshers but got undesired meshes which are shown in attached figures.

What i did, Just specified max size in 'curve mesh setup' and 'surface mesh setup' and computed the mesh.

Please let me know how to get the required mesh.

Thanks
Attached Images
File Type: jpg required mesh.jpg (51.4 KB, 40 views)
File Type: jpg Patch-depend.jpg (89.5 KB, 69 views)
File Type: jpg Patch-independ.jpg (96.5 KB, 55 views)
MASOUD is offline   Reply With Quote

Old   February 3, 2011, 04:39
Default
  #2
Senior Member
 
AB
Join Date: Sep 2009
Location: France
Posts: 323
Rep Power: 21
BrolY will become famous soon enough
You should try blocking. It would be very easy with your geometry !
BrolY is offline   Reply With Quote

Old   February 3, 2011, 12:33
Default
  #3
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
Blog Entries: 1
Rep Power: 47
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Right, blocking would be easy and give 100% control. Try a single hexa tutorial (such as the 2D pipe junction) and you will be all set.

but if you want to use patch conforming, you could also increase the Mapping in your global settings, or at least turn off the transition to the larger mesh size on your surface... In other words, the patch dependent mesher can map this easily, but your settings are not asking it to. Go to Mesh (tab) => Global settings and turn off the transition and turn on mapping... Or if you want transition on other areas of your model, just set the mesh size on this surface to match the curves...

Patch independent could even give you boundary layers if that is what you want, just set the intial height and width (number of layers) on those perimeter curves. Or you could use prism with the blayer2D option (under advanced settings).



Best regards,
PSYMN is offline   Reply With Quote

Old   February 3, 2011, 14:54
Default
  #4
Senior Member
 
MASOUD
Join Date: Mar 2009
Posts: 102
Rep Power: 17
MASOUD is on a distinguished road
Well, I will go through your suggestions but for now, please check the following procedure which resulted in having the attached mesh.

1. In 'global mesh setup' > 'shell meshing parameters' , chose patch-dependent.
2. In 'curve mesh setup' set 30 nodes for lower and upper curves.
3. In 'curve mesh setup', set 20 nodes for left and right curves and in 'advanced bunching', set 0.01 for spacing 1-2 and 1.2 for ratio 1-2.

4. Finally hit the compute mesh.

Please check the attached file and let me know whether or not this is a right procedure.

Thanks
Attached Images
File Type: jpg patch-dep-inflation.jpg (92.2 KB, 48 views)
MASOUD is offline   Reply With Quote

Old   February 3, 2011, 18:51
Default Does this meet your needs?
  #5
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,663
Blog Entries: 1
Rep Power: 47
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Yup, that is one way to do it... The real question is if you like it

ICEM CFD is very flexible and their are many ways to get things done. Hexa blocking offers the most control, but if this meets your needs, then you are already done.

Best regards,

Simon
PSYMN is offline   Reply With Quote

Old   February 4, 2011, 12:53
Default
  #6
Senior Member
 
MASOUD
Join Date: Mar 2009
Posts: 102
Rep Power: 17
MASOUD is on a distinguished road
Quote:
Originally Posted by PSYMN View Post
Yup, that is one way to do it... The real question is if you like it

ICEM CFD is very flexible and their are many ways to get things done. Hexa blocking offers the most control, but if this meets your needs, then you are already done.

Best regards,

Simon
Thanks Simon, I'll try it too. Cheers.
MASOUD is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Flow Direction: normal to boundary!!! Atit CFX 1 August 2, 2015 14:42
Large Valve Flow Analysis - Inflation Problem sercan85 ANSYS Meshing & Geometry 2 June 1, 2010 15:02
Inflation Gab CFX 6 August 24, 2005 23:45
[Commercial meshers] Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Meshing & Mesh Conversion 2 July 15, 2005 05:15
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 10:11


All times are GMT -4. The time now is 02:29.