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

[DesignModeler] Boolean subtract error-Boolean operation failed, Context:Geometry Engine

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

Like Tree2Likes
  • 1 Post By hwet
  • 1 Post By jrunsten

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 2, 2014, 14:39
Default Boolean subtract error-Boolean operation failed, Context:Geometry Engine
  #1
New Member
 
Mark
Join Date: Nov 2014
Posts: 21
Rep Power: 9
woodmark75 is on a distinguished road
Hi, I'm having major issues trying to do a 'Boolean>Extract' from an enclosure. Originally the error I had was 'error-non manifold bodies'. So I closed up any holes to create a solid body.

Now when I attempt to do a Boolean Extract I get the error 'Bolean operation failed, Context: Geometry Engine, while generating Feature Boolean2'.

I'm using ANSYS 14.0-Fluent, trying to do a Fluent-CFD analysis of air flow over a kite. Here's a screen shot, please help...
wpbj file:

https://app.box.com/s/m9g8g9as2b0awt57mrci

Other Associated ANSYS files:

https://app.box.com/s/kfd8rl1u0ohgmgc78202

Model file:

https://app.box.com/s/3o8kh6vh4a8hd5u8b3hm
Attached Images
File Type: jpg DesignModeler_ Boolean-Subtract.jpg (41.0 KB, 88 views)
woodmark75 is offline   Reply With Quote

Old   November 2, 2014, 22:46
Default
  #2
Senior Member
 
Join Date: Mar 2014
Posts: 375
Rep Power: 10
hwet is on a distinguished road
should work, maybe you can try to make an actual geometry of a box instead of making an enclosure and try to use the boolean command with that then
woodmark75 likes this.
hwet is offline   Reply With Quote

Old   November 3, 2014, 06:19
Default
  #3
New Member
 
Mark
Join Date: Nov 2014
Posts: 21
Rep Power: 9
woodmark75 is on a distinguished road
I've tried creating offset planes, sketching the outlines of the fluid domain & then>create solid body from sketches>create>skin loft>... But still get the same result when I attempt a Boolean subtraction?

It looks like I might have to use the oriinal 'surface body' model in ICEM-CFD. I wanted to avoid that at all costs, as I'm new to ANSYS & have limited time.

Do you think anyone on the site would do the Boolean subtract with the attached files for a fee?
woodmark75 is offline   Reply With Quote

Old   November 3, 2014, 09:18
Default
  #4
Senior Member
 
Josef Runsten
Join Date: Jul 2010
Location: Gothenburg, Sweden
Posts: 188
Rep Power: 21
jrunsten will become famous soon enough
Send a message via MSN to jrunsten
Works fine in DM v15. Here is the agdb (won't open in v14) and a converted step file of only the surrounding domain.


agdb: https://www.dropbox.com/s/r53bye3rtp...Geom.agdb?dl=0
step: https://www.dropbox.com/s/iwto4h4zku8itwi/Geom.stp?dl=0
Hope it helps.
woodmark75 likes this.
jrunsten is offline   Reply With Quote

Old   November 3, 2014, 09:43
Default
  #5
New Member
 
Mark
Join Date: Nov 2014
Posts: 21
Rep Power: 9
woodmark75 is on a distinguished road
Hi jrunsten,

What steps did you take to create the fluid domain? The 2 methods I've tried are;

  1. Tools>Enclosure>Set details ie subtract>target body/tool body>Generate...
  2. Insert Planes>Sketch domain ends>Create solid body from sketches>Create>skin loft>Apply>Generate...
Is there a different method to create the 'fluid domain'? If I can get this subtraction completed, I get on with meshing etc. Got to have graphs completed by mid-week!
woodmark75 is offline   Reply With Quote

Old   November 3, 2014, 10:31
Default
  #6
Senior Member
 
Josef Runsten
Join Date: Jul 2010
Location: Gothenburg, Sweden
Posts: 188
Rep Power: 21
jrunsten will become famous soon enough
Send a message via MSN to jrunsten
I just generated your project, nothing else. So you are doing it correctly, but maybe v15 can handle your geometry better. Maybe the area where your curved surfaces meet is a bit hard to handle for DM, i dont know.

But cant you just move on with the step file i sent you? If the domain is not right in size, just cut or extrude it to desired dimensions?
jrunsten is offline   Reply With Quote

Old   November 3, 2014, 11:34
Default
  #7
New Member
 
Mark
Join Date: Nov 2014
Posts: 21
Rep Power: 9
woodmark75 is on a distinguished road
Did you actually manage to Boolean>subtract the kite from the fluid domain?

Normally my model is imported first, it automatically goes to a default position. Would I import the fluid domain (box) in the same way? Then import my kite model, if so how do I position my kite inside the fluid domain i.e centrally?

Sorry if this is obvious but I've only been working with ANSYS for a few days. Thanks...
woodmark75 is offline   Reply With Quote

Old   November 3, 2014, 19:02
Default
  #8
New Member
 
Mark
Join Date: Nov 2014
Posts: 21
Rep Power: 9
woodmark75 is on a distinguished road
Hi jrunsten,

I'm just back form Uni after having successfully meshed the kite.

There's no way I'd have sussed this out myself, I was going in circles. So thanks again you really helped me out!

Regards, Mark
woodmark75 is offline   Reply With Quote

Old   November 4, 2014, 05:36
Default
  #9
Senior Member
 
Josef Runsten
Join Date: Jul 2010
Location: Gothenburg, Sweden
Posts: 188
Rep Power: 21
jrunsten will become famous soon enough
Send a message via MSN to jrunsten
Glad it worked out
jrunsten is offline   Reply With Quote

Old   February 11, 2017, 12:59
Unhappy
  #10
New Member
 
julah
Join Date: Feb 2017
Posts: 2
Rep Power: 0
Julah123 is on a distinguished road
Quote:
Originally Posted by jrunsten View Post
Glad it worked out
i also have the same problem in my final year project, could you teach me how to fix it ?..:'(


http://www.mediafire.com/file/w3on93...1_Predator.IGS


http://www.mediafire.com/view/w0y9x3...3/Untitled.png
Julah123 is offline   Reply With Quote

Old   February 18, 2018, 18:25
Default
  #11
New Member
 
Eduardo Fernandes
Join Date: Feb 2018
Posts: 2
Rep Power: 0
ecortereal is on a distinguished road
Quote:
Originally Posted by Julah123 View Post
i also have the same problem in my final year project, could you teach me how to fix it ?..:'(


http://www.mediafire.com/file/w3on93...1_Predator.IGS


http://www.mediafire.com/view/w0y9x3...3/Untitled.png


You did it? I have the same problem.
ecortereal is offline   Reply With Quote

Old   March 30, 2018, 07:29
Default Enclosure error
  #12
New Member
 
Marvin Katende
Join Date: Mar 2018
Posts: 1
Rep Power: 0
mkatende is on a distinguished road
I keep receiving an error whilst creating an enclosure onto a model in Ansys 17.2

My model got 124 parts/bodies. Could this be the issue?

What could be the best solution to it?
mkatende is offline   Reply With Quote

Reply

Tags
ansys 14, boolean subtract, design modeler, error

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
Foam::error::printStack(Foam::Ostream&) with simpleFoam -parallel U.Golling OpenFOAM Running, Solving & CFD 46 March 25, 2021 06:28
Initial conditions for uniform flow andreas OpenFOAM 5 November 16, 2012 16:00
[OpenFOAM] ParaView/Parafoam error when making animation Disco_Caine ParaView 6 September 28, 2010 10:54
user subroutine error CFDUSER CFX 2 December 9, 2006 07:31
user defined function cfduser CFX 0 April 29, 2006 11:58


All times are GMT -4. The time now is 10:26.