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

[snappyHexMesh] Bad snap on baffle edges

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 12, 2020, 05:26
Default Bad snap on baffle edges
  #1
Senior Member
 
Sita Drost
Join Date: Mar 2009
Location: Arnhem, The Netherlands
Posts: 184
Rep Power: 13
sita is on a distinguished road
Hi all,

I'm trying to mesh a sail geometry, which I import into snappyHexMesh (OF7) from an stl-file. As the geometry has zero thickness, I'm treating it as a baffle. Even though I'm using explicit feature snapping (and the extracted edges look nice and smooth), in the final mesh the edges of my sail turn out rather badly (see attached images).

What I've tried so far:
- Refining the background mesh
- Refining the edge mesh
- Refining the surface mesh
- Increasing/decreasing resolveFeatureAngle
- Playing around with settings in snapControls (nSmoothPatch, tolerance, nSolveIter, nRelaxIter, nFeatureSnapIter)
- And probably some more things which I can't even remember...

None of these settings seem to make much of a difference though. Is there something that I'm missing/doing wrong?

Any tips would be appreciated!
Sita


EDIT: Anyone? I'm perfectly aware that this looks like a problem that has been solved before, and that there should be answers somewhere on this forum. It's just that I can't find anything specifically on baffles, and the other answers didn't help me so far.
Attached Images
File Type: jpg bad_snap.jpg (48.3 KB, 10 views)
File Type: jpg bad_snap2.jpg (15.7 KB, 10 views)

Last edited by sita; March 18, 2020 at 09:10.
sita 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
[snappyHexMesh] snappyHexMesh sticking point natty_king OpenFOAM Meshing & Mesh Conversion 10 August 5, 2019 19:18
SimpleFoam & Theater jipai OpenFOAM Running, Solving & CFD 3 June 18, 2019 10:11
[snappyHexMesh] snappyHexMesh does not create any mesh except one for the reference cell Arman_N OpenFOAM Meshing & Mesh Conversion 1 May 20, 2019 17:16
[snappyHexMesh] sHM layer process keeps getting killed MBttR OpenFOAM Meshing & Mesh Conversion 4 August 15, 2016 03:21
[snappyHexMesh] No layers in a small gap bobburnquist OpenFOAM Meshing & Mesh Conversion 6 August 26, 2015 09:38


All times are GMT -4. The time now is 01:18.