CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > ANSYS Meshing & Geometry

[Other] 2D Rectangular Mesh in Ansys Meshing

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

Like Tree2Likes
  • 1 Post By PSYMN
  • 1 Post By flotus1

LinkBack Thread Tools Display Modes
Old   January 5, 2010, 18:31
Cool 2D Rectangular Mesh in Ansys Meshing
New Member
Join Date: Oct 2009
Posts: 9
Rep Power: 10
Belgio is on a distinguished road
Ansys 12 Meshing.
A geometry is a simple tube, in 2D - just a rectanular.
I want to make a rectangular (or square) mesh. But when I'm trying to do so, the mesh is not fine in some parts of the domain (cells are not totally square). See picture below:

How can I solve this issue?
Thanks in advance
Belgio is offline   Reply With Quote

Old   January 6, 2010, 12:55
Default Mapped
Retired from CFD Online
PSYMN's Avatar
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,665
Blog Entries: 1
Rep Power: 39
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Could be one of several issues.

If it is not mapped, the free meshing is not always rectangular (looks mapped, but actually paved), and user should add a mapped face mesh control.

If it is mapped (already has a mapped face mesh control or adding one doesn’t help), this could be related to virtual topologies or facetization of the model, in which case using the “project to underlying geometry” (new option in 12.1) would help.
thermal energy likes this.
PSYMN is offline   Reply With Quote

Old   January 6, 2010, 19:26
New Member
Join Date: Oct 2009
Posts: 9
Rep Power: 10
Belgio is on a distinguished road
Thanks a lot, Simon!

I need also a mesh refinement near the boundary. How can I perform this while using the Mapped Face Meshing?

When I make a Mapped Face Meshing all Inflations are not working, it is written: "Active: No, Invalid Method".
Belgio is offline   Reply With Quote

Old   January 11, 2010, 09:39
New Member
Join Date: Oct 2009
Posts: 9
Rep Power: 10
Belgio is on a distinguished road
I've tried turn on/off all options I've seen but I haven't managed to make a boundary layer refinement with Mapped Face Meshing. Does anybody know how to make this?
Belgio is offline   Reply With Quote

Old   October 23, 2013, 10:37
Join Date: Feb 2012
Location: Canada
Posts: 99
Rep Power: 7
enayath is on a distinguished road
Hello Belgio,

Did you figure it out how to fix this issue?
I have the same problem...

enayath is offline   Reply With Quote

Old   January 22, 2014, 15:22
Default Same issue
pranab_jha's Avatar
Pranab N Jha
Join Date: Nov 2009
Location: Houston, TX
Posts: 86
Rep Power: 10
pranab_jha is on a distinguished road
I also have the same issue. With a mapped face, I cannot have a Boundary layer mesh on the same face. I worked around it (for the time being), by having a paved mesh on the face (using quad elements only) and then sweeping my domain using this face as the source. I had to specify manual source, so that I could add an inflation later on on this face and using the boundary edge.

Hope this helps.

Also, if anyone can find out how to add BL mesh to a mapped face, plz comment. The other, and more basic, way would be to use mesh sizing on an edge in the wall normal direction to get the BL mesh manually. It worked for me on a simple 3D geometry, but I haven't tried it on more complex ones.
pranab_jha is offline   Reply With Quote

Old   January 22, 2014, 15:38
Senior Member
flotus1's Avatar
Join Date: Jun 2012
Location: Germany
Posts: 1,692
Rep Power: 26
flotus1 will become famous soon enoughflotus1 will become famous soon enough
You cannot add the usual inflation option to create a boundary layer mesh on faces with a mapped meshing.

Instead, as pranab_jha already mentioned, you can specify the cell distribution on the edges of the face.
Simply add a sizing option to the edges that need bunching.
Then you can add a bunching law to mimic a boundary layer mesh.
Remember to set the behaviour of the edge sizing to "hard", otherwise your input is likely to be ignored by the mesher.
Since version 15.0 of Ansys workbench, you can finally change the orientation of edges that produce a "reversed" bunching behaviour.
With the older versions, you simply put these edges to a second sizing function and choose the opposite bunching direction.

Of course this approach is limited to rather simple geometries and does not provide the amount of control you usually want, so better choose a meshing tool like ICEM for complex geometries.
thermal energy likes this.
flotus1 is offline   Reply With Quote

Old   April 14, 2016, 10:48
Join Date: Feb 2015
Location: Alexandria-Egypt
Posts: 30
Rep Power: 5
enass massoud is on a distinguished road
How can subdivide the first grid raw near the wall to account for near wall treatment using ansys meshing. I have done mapped faced meshing with proper sizing but i cant subdivide the grid next to wall
enass massoud is offline   Reply With Quote

Old   February 10, 2017, 05:01
New Member
Join Date: Feb 2017
Posts: 3
Rep Power: 3
Nancy Hamed is on a distinguished road
Hi Everybody,
In mesh, I already divided the model into sweep-able bodies. But now, I see imprinted faces in my model on ANSYS Mechanic. Those imprinted faces are not existed in DM. How can I remove those faces since they affect the quality on meshing?
Nancy Hamed is offline   Reply With Quote


mesh, meshing, rectangular, square

Thread Tools
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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
importing mesh from Gambit and other software to ansys workbench mortazavi CFX 13 May 30, 2012 10:00
meshing and mesh storing u k jha ANSYS Meshing & Geometry 2 April 30, 2009 09:30
2D mesh by ANSYS Workbench 8.1 Dome CFX 4 June 6, 2005 06:20
How to control Minximum mesh space? hung FLUENT 7 April 18, 2005 09:38
Ansys mesh file michel FLUENT 0 March 5, 2004 08:51

All times are GMT -4. The time now is 18:08.