|
[Sponsors] |
September 20, 2018, 00:23 |
Geometry error
|
#1 |
New Member
yikai shao
Join Date: Mar 2015
Posts: 15
Rep Power: 11 |
Hello everyone. Days ago I had mesh problems for both surface mesh and volume mesh like this picture shows:
Soon I realized this problem is from faulty geometry: Sorry about these pictures, I’m not sure if you can see these lumps.. The original cad model has no problem at all, it is created in solidworks. But after I input into ccm problem starts, and CAD repair function inside ccm dosent pick the problem up. I have tired inputting same model with different types of file. It actual made different! Also the “Tessellation Density “ option makes difference as well. But no matter what I try, there is always some lumps by edges! What type of file do you guys use to input into ccm? Thanks |
|
September 20, 2018, 02:40 |
|
#2 |
Senior Member
|
I prefer STEP (.STP) file from CAD with default tessellation.
|
|
September 20, 2018, 03:19 |
|
#3 |
New Member
yikai shao
Join Date: Mar 2015
Posts: 15
Rep Power: 11 |
Just found , the “auto surface repair” inside “Repair surface” actually makes the geometry surface even more lumps! Have to be careful with this
|
|
September 20, 2018, 10:11 |
|
#4 |
New Member
Dominik
Join Date: Aug 2017
Posts: 2
Rep Power: 0 |
Sometimes the imported CAD geometry seems to have problems especially when it contains small roundings or things like that.
I had a geometry with small channels which looked crumpled in the 3D Modeller but after remeshing the surface all was fine. So maybe it's just the representation in your case, too. Good luck! |
|
September 21, 2018, 04:58 |
|
#5 | |
New Member
yikai shao
Join Date: Mar 2015
Posts: 15
Rep Power: 11 |
Quote:
|
||
September 25, 2018, 13:01 |
|
#6 |
New Member
Owen
Join Date: Aug 2018
Posts: 20
Rep Power: 7 |
The wrapper shouldn't be making a mess of that feature. Can you post a picture of the discretized input geometry?
I'm glad you were able to configure the wrapper to get what you wanted. |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[blockMesh] blockMesh with double grading. | spwater | OpenFOAM Meshing & Mesh Conversion | 92 | January 12, 2019 09:00 |
[OpenFOAM.org] Compile OF 2.3 on Mac OS X .... the patch | gschaider | OpenFOAM Installation | 225 | August 25, 2015 19:43 |
Version 15 on Mac OS X | gschaider | OpenFOAM Installation | 113 | December 2, 2009 10:23 |
Compiling problems with hello worldC | fw407 | OpenFOAM Installation | 21 | January 6, 2008 17:38 |
DecomposePar links against liblamso0 with OpenMPI | jens_klostermann | OpenFOAM Bugs | 11 | June 28, 2007 17:51 |