CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > Siemens > STAR-CCM+

CAD projection surface mesh help

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 25, 2020, 04:26
Default CAD projection surface mesh help
New Member
Alessandro Donadeo
Join Date: Mar 2020
Posts: 19
Rep Power: 5
AlphaDelta is on a distinguished road
I am creating a surface mesh for my wind turbine.
If I create the mesh by deactivating "CAD projection", it creates strange areas with coarse cells on the outside of the blade (figure 1), if instead if activated "CAD projection" creates coarse striped areas on the inside of the blade (figure 2 ).
Anyone know the reason?
Attached Images
File Type: jpg 1.jpg (51.5 KB, 14 views)
File Type: jpg 2.jpg (69.4 KB, 13 views)
AlphaDelta is offline   Reply With Quote

Old   April 27, 2020, 00:25
Senior Member
Join Date: Mar 2009
Posts: 556
Rep Power: 19
ping is on a distinguished road
this is strange but the surface mesher will very occasionally create local fine patches for no logical reason but this is not what you have.
what does the surface mesh of the cad of the blade look like that is your input to the surface mesher and does its mesh match in some way what you see in those remeshed surface? maybe try re-tessellating the cad to a coarser or finer setting in parts.
i suggest you check these things - your cad might have multiple surfaces near each other; there are other surface near the blade that are affecting the meshing; turn off proximity and compatibility refinement;
ping is offline   Reply With Quote


cad projection, mesh, surface

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] Add Mesh Layers doesnt work on the whole surface Kryo OpenFOAM Meshing & Mesh Conversion 13 February 17, 2022 08:34
Extracting volume from surface CAD mesh vjewtou STAR-CCM+ 2 May 13, 2017 15:14
[Gmsh] 2D Mesh Generation Tutorial for GMSH aeroslacker OpenFOAM Meshing & Mesh Conversion 12 January 19, 2012 04:52
[ICEM] Problem making structured mesh on a surface froztbear ANSYS Meshing & Geometry 4 November 10, 2011 09:52
[snappyHexMesh] external flow with snappyHexMesh chelvistero OpenFOAM Meshing & Mesh Conversion 11 January 15, 2010 20:43

All times are GMT -4. The time now is 22:28.