|
[Sponsors] |
![]() |
![]() |
#1 |
Senior Member
Arijit Saha
Join Date: Feb 2019
Location: Singapore
Posts: 132
Rep Power: 7 ![]() |
Hi SU2 user,
I am trying to simulate a compressible case, meshing with gmsh and then doing the numerical analysis with SU2. The simulation is running fine but I observed a weird thing in the orthogonality angle tab of su2 and that is the min and max ortho angle is nan. I am wondering what might be the reason of that? Will that lead to any invalid results? I have attached the snapshot. Any kind of information will be of real help. Thank you. |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Member
na
Join Date: Jul 2018
Posts: 90
Rep Power: 8 ![]() |
Hi ari003,
You can check the Mesh quality statistics in the volume output by adding: VOLUME_OUTPUT= MESH_QUALITY to your .cfg file. I guess you will see a few nan-cells but most of it will be fine. So I suspect more a problem in the Orthogonality computation in that case. I searched quite a few NaN's through the code with some debugging and I always had to get rid of the mesh-quality routines as NaN's are often encountered in those code-bits due to some trigonometry going on in there. So to some degree I know that code could need a few more error-checks or safety nets but didn't find the time to do so. In case you are interested to take a look into this you are more than welcome ![]() Hope that helps, Tobi |
|
![]() |
![]() |
![]() |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Need Help Here! nan value error | mgkid3310 | OpenFOAM Running, Solving & CFD | 1 | October 6, 2016 00:59 |
Why simulation results showing "nan" values? | Sargam05 | OpenFOAM | 4 | September 10, 2012 12:37 |
[Netgen] Import netgen mesh to OpenFOAM | hsieh | OpenFOAM Meshing & Mesh Conversion | 32 | September 13, 2011 05:50 |
Cells with t below lower limit | Purushothama | Siemens | 2 | May 31, 2010 21:58 |
Could anybody help me see this error and give help | liugx212 | OpenFOAM Running, Solving & CFD | 3 | January 4, 2006 18:07 |