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

[snappyHexMesh] no layer added

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 14, 2019, 01:20
Default no layer added
  #1
New Member
 
Hyeoksu Lee
Join Date: Aug 2019
Posts: 2
Rep Power: 0
Hyeoksu is on a distinguished road
Hi everyone,

I have a problem with mesh generation using snappyHexMesh. I tried to add layers by changing parameters in addLayerControls but I didn't work.

After only one layer iteration, the layer addition step was stopped with no layer like this.

Quote:
patch faces layers overall thickness
[m] [%]
----- ----- ------ --- ---
hull 14679 0 0 0

Layer mesh : cells(local):158611 faces(local):503308 points(local):187900
Layer mesh : cells:158611 faces:503308 points:187900
Cells per refinement level:
0 121562
1 16283
2 9406
3 11360
I don't understand why this process was stopped without added layers.
And the log said that there are 'Layer mesh' but I don't know what this mean.

To fix this, I tried following options.
- set 'relativeSizes' true
- reduce 'nSurfaceLayers' (2 ~ 5)
- set 'finalLayerThickness' properly (0.3 ~ 1.0)
- set 'minThickness' properly (0.002 or smaller)

I attached sHMDict and log file.
Could you help me to solve this problem?
Thanks in advance
Attached Files
File Type: txt log.txt (68.8 KB, 2 views)
File Type: txt snappyHexMeshDict.txt (8.3 KB, 3 views)
Hyeoksu is offline   Reply With Quote

Old   August 14, 2019, 03:28
Default
  #2
New Member
 
Hyeoksu Lee
Join Date: Aug 2019
Posts: 2
Rep Power: 0
Hyeoksu is on a distinguished road
I found what was wrong!

Since I didn't designated the boundary types, the boundary type was set to 'empty' automatically. So the layer addition couldn't be done.
Hyeoksu is offline   Reply With Quote

Reply

Tags
no layer, snappyhexmesh


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 Boundary Layer at Corner panpanzhong OpenFOAM Meshing & Mesh Conversion 5 July 3, 2018 05:53
[snappyHexMesh] Disturbance in the mesh after the addition of layers Dorian1504 OpenFOAM Meshing & Mesh Conversion 0 June 13, 2017 02:27
[snappyHexMesh] Problem airfoil snappyhexmesh add layer bye bye my blue OpenFOAM Meshing & Mesh Conversion 1 May 5, 2017 05:56
[snappyHexMesh] snappy hangs while layer generation bastil OpenFOAM Meshing & Mesh Conversion 3 October 29, 2010 07:19
[snappyHexMesh] Boundary layer generation problems ivan_cozza OpenFOAM Meshing & Mesh Conversion 0 October 6, 2010 13:47


All times are GMT -4. The time now is 01:27.