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

[ANSYS Meshing] How to avoid Failed Meshing in condition of small interspace between Models?

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 26, 2016, 11:58
Unhappy How to avoid Failed Meshing in condition of small interspace between Models?
  #1
New Member
 
D_K
Join Date: Jan 2016
Posts: 5
Rep Power: 10
Glorie is on a distinguished road
Hi everybody, I am currently doing a cfx simulation about aerodynamic parts of racing car.
In my model there is a small interspace between main body shell and end plate of front wings, which I think is the reason why failed meshing happens.
I have tried different settings of mesh(sizing,inflation). all failed. I have done all simulations of every single part(main body, front wings,rear wings etc), the meshing are perfect, no such problem. It seems this problem only happens in the case with assembly parts.
Do you guys know how to avoid this mesh problem if i keep the model like this? Or do you guys have ever similar experience?
Attached Images
File Type: png Unbenannt.PNG (107.9 KB, 33 views)
Glorie is offline   Reply With Quote

Old   July 28, 2016, 02:00
Default
  #2
Senior Member
 
Join Date: Apr 2014
Location: Melbourne
Posts: 584
Rep Power: 14
Kapi is on a distinguished road
increase the tolerance of interface
Kapi is offline   Reply With Quote

Old   July 28, 2016, 08:58
Default
  #3
New Member
 
D_K
Join Date: Jan 2016
Posts: 5
Rep Power: 10
Glorie is on a distinguished road
Quote:
Originally Posted by Kapi View Post
increase the tolerance of interface
thanks for your answer Kapi, i have tried a loose Model tolerance in DM and increasing the Max Face/Tet Size, Min Size and Defeaturing Tolerance in Sizing of Meshing. It seems not work. Did I do something wrong?
Glorie is offline   Reply With Quote

Old   July 28, 2016, 18:55
Default
  #4
Senior Member
 
Join Date: Apr 2014
Location: Melbourne
Posts: 584
Rep Power: 14
Kapi is on a distinguished road
i normally do it in CFX model when i create my interface.
I just change face search tolerance factor and it takes into consideration.
By default its 1
Kapi is offline   Reply With Quote

Old   July 31, 2016, 05:16
Default
  #5
New Member
 
D_K
Join Date: Jan 2016
Posts: 5
Rep Power: 10
Glorie is on a distinguished road
thanks Kapi, i solve this problem.
Glorie is offline   Reply With Quote

Old   July 31, 2016, 18:44
Default
  #6
Senior Member
 
Join Date: Apr 2014
Location: Melbourne
Posts: 584
Rep Power: 14
Kapi is on a distinguished road
did you use the solution which I provided or used some other solution?
If you have used other solution then please post it here, it will someone who has similar problem!
Kapi is offline   Reply With Quote

Old   August 1, 2016, 14:16
Default
  #7
New Member
 
D_K
Join Date: Jan 2016
Posts: 5
Rep Power: 10
Glorie is on a distinguished road
I change the size of the Element and Angle, the number of total elements is going big, but it is a good meshing already.
Attached Images
File Type: png ??.PNG (13.3 KB, 55 views)
Glorie is offline   Reply With Quote

Reply

Tags
aerodynamic, interspace

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
'Tetrahedral meshing has failed for volume...' Murat FLUENT 5 February 19, 2011 04:22
Meshing a small section in GAMBIT Anne FLUENT 4 May 12, 2008 12:04
Avoid small surface areas UncleToby Main CFD Forum 0 January 3, 2008 08:04
meshing very small tubes Wooster CFX 6 July 23, 2007 10:41
CFX 5.5 Roued CFX 1 October 2, 2001 16:49


All times are GMT -4. The time now is 16:14.