CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

Wind Blade Serration Meshing Error

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 21, 2022, 04:45
Default Wind Blade Serration Meshing Error
  #1
New Member
 
Chehade
Join Date: Apr 2022
Posts: 21
Rep Power: 4
Chehade is on a distinguished road
Hello, i am trying to simulate the 6DOF rotation of a serrated edge wind turbine, i have drawn my turbine on solidworks and imported to ANSYS. When i use watertight geometry i get an error at eh 'generate volume mesh' (i am using tetrahedral) that says there are gaps that must be filled or refinned. However, it highlights the serration which i purposely want to remain on my blades. Is there any way to fix without having to remove the serrations? Or at least modify their geometry. Kindly find below the serration pictures.
Attached Images
File Type: png serration2.PNG (45.2 KB, 8 views)
File Type: png serration.PNG (32.7 KB, 9 views)
File Type: png serration 5.PNG (41.5 KB, 10 views)
File Type: png serraion 3.PNG (42.5 KB, 7 views)
Chehade is offline   Reply With Quote

Old   April 21, 2022, 11:46
Default
  #2
Senior Member
 
Kira
Join Date: Nov 2020
Location: Canada
Posts: 435
Rep Power: 9
aero_head is on a distinguished road
Imported into ANSYS what? That’s kind of like saying you made the part in CAD and need help with something software specific.
aero_head is offline   Reply With Quote

Old   April 21, 2022, 11:50
Default
  #3
New Member
 
Chehade
Join Date: Apr 2022
Posts: 21
Rep Power: 4
Chehade is on a distinguished road
Design modeler. The turbine is drawn in ansys design modeler then imported to solidworks for adding serration. Then re-imported to ansys design modeler for enclosures and boolean finally to mesh.
Chehade is offline   Reply With Quote

Old   April 21, 2022, 11:51
Default
  #4
New Member
 
Chehade
Join Date: Apr 2022
Posts: 21
Rep Power: 4
Chehade is on a distinguished road
I know ansys has problems with sharp edges but the whole point is having that sawtooth pattern so is there a workaround.
Chehade is offline   Reply With Quote

Old   April 21, 2022, 11:54
Default
  #5
Senior Member
 
Kira
Join Date: Nov 2020
Location: Canada
Posts: 435
Rep Power: 9
aero_head is on a distinguished road
Have you seen this video? It’s from the ANSYS company
https://youtu.be/S_kpYzsqzo0
aero_head is offline   Reply With Quote

Old   April 21, 2022, 11:58
Default
  #6
Senior Member
 
Kira
Join Date: Nov 2020
Location: Canada
Posts: 435
Rep Power: 9
aero_head is on a distinguished road
You can also try reducing the defeaturing tolerance, it should be less than the smallest details on your geometry.
aero_head is offline   Reply With Quote

Old   April 21, 2022, 12:11
Default
  #7
New Member
 
Chehade
Join Date: Apr 2022
Posts: 21
Rep Power: 4
Chehade is on a distinguished road
I have tried to repair but it states that it failed. As for the 2nd option i do not know how and where
Chehade is offline   Reply With Quote

Old   April 22, 2022, 10:43
Default
  #8
New Member
 
Chehade
Join Date: Apr 2022
Posts: 21
Rep Power: 4
Chehade is on a distinguished road
***Bump***
Chehade is offline   Reply With Quote

Reply

Tags
design modeler, error, mesh, serration, wind turbine

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
Building OpenFOAM1.7.0 from source ata OpenFOAM Installation 46 March 6, 2022 14:21
error compiling modified applications yvyan OpenFOAM Programming & Development 21 March 1, 2016 05:53
Compiling dynamicTopoFvMesh for OpenFOAM 2.1.x Saxwax OpenFOAM Installation 25 November 29, 2013 06:34
Errors in UDF shashank312 Fluent UDF and Scheme Programming 6 May 30, 2013 21:30
[swak4Foam] groovyBC: problems compiling: "flex: not found" and "undefined reference to ..." sega OpenFOAM Community Contributions 12 February 17, 2010 10:30


All times are GMT -4. The time now is 14:39.