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

[snappyHexMesh] There are two unconnected cubes,but one disappears after using snappyHexMesh

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 22, 2016, 23:47
Default There are two unconnected cubes,but one disappears after using snappyHexMesh
  #1
New Member
 
Xiaoxue Shen
Join Date: Aug 2016
Posts: 8
Rep Power: 9
xiaoxue is on a distinguished road
Hi,
I have read some threads about this matter but still have no idea how to fix this problem.

In my case, two unconnected cubes are generated when using blockMesh, I want to remove a sphere mesh from one cube,so I use snappyHexMesh, the locationInMesh is set outside the sphere but inside the cube. Then the other cube mesh disappear. I may be wrong but cannot figure out where the problem is. Would anyone help me?

Best wishes,
Xiaoxue
Attached Images
File Type: png 0.png (22.4 KB, 8 views)
File Type: png 1.png (53.6 KB, 7 views)
xiaoxue is offline   Reply With Quote

Old   September 23, 2016, 09:36
Default
  #2
Senior Member
 
Join Date: Aug 2013
Posts: 407
Rep Power: 15
Antimony is on a distinguished road
Hi,

Using your current approach, you will not be able to retain the second cube as the second cube is "inaccessible" from your current locationInMesh point and will be removed.

My suggestion would be that you create each cube in a separate case. For the one with the sphere, run snappyHexMesh.

Then use mergeMeshes to bring the two meshes together.

Hope this helps.

Cheers,
Antimony
Antimony is offline   Reply With Quote

Old   September 23, 2016, 09:43
Default
  #3
New Member
 
Xiaoxue Shen
Join Date: Aug 2016
Posts: 8
Rep Power: 9
xiaoxue is on a distinguished road
Quote:
Originally Posted by Antimony View Post
Hi,

Using your current approach, you will not be able to retain the second cube as the second cube is "inaccessible" from your current locationInMesh point and will be removed.

My suggestion would be that you create each cube in a separate case. For the one with the sphere, run snappyHexMesh.

Then use mergeMeshes to bring the two meshes together.

Hope this helps.

Cheers,
Antimony
Hi Antimony,

Thanks for your reply, I'll try that. Hope that will work, I have been stuck here for several days

Best wishes,
Xiaoxue
xiaoxue is offline   Reply With Quote

Reply

Tags
mesh disappear, 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] Creating multiple unconnected solid elements with snappyHexMesh Goddi OpenFOAM Meshing & Mesh Conversion 1 May 12, 2019 09:12
[snappyHexMesh] Running snappyHexMesh in parallel - optimizing peterhess OpenFOAM Meshing & Mesh Conversion 2 January 3, 2018 02:54
[snappyHexMesh] Mesh two unconnected stl-geometries with snappyHexMesh Harak OpenFOAM Meshing & Mesh Conversion 1 August 12, 2015 02:20
[snappyHexMesh] Geometry disappears when using SnappyHexMesh with multiple blocks pizzaspinate OpenFOAM Meshing & Mesh Conversion 3 February 3, 2015 12:19
[snappyHexMesh] crash sHM H25E OpenFOAM Meshing & Mesh Conversion 11 November 10, 2014 11:27


All times are GMT -4. The time now is 11:28.