|
[Sponsors] |
November 29, 2013, 06:03 |
pre-mesh
|
#1 |
New Member
Join Date: Nov 2013
Posts: 2
Rep Power: 0 |
hi,
first of all, I have very little experience using Simulation Software. I want to make a 3d-Simulation of a circular Body in a control volume. The geometry is pretty simple and it did not take Long to draw. I was also capable of generating an unstructured mesh without using blocks. The Quality values of which started at around 2.5 (Picture below). MY PROBLEM: I want to write a .cfx file to be able to read the file in CFX-pre. The ICEM Output function will only write a .cfx5- file (does not matter if I say that the Version is previous to 5.5), which cfx-pre does not recognize. (CFX Version and ICEM are both R14.5) How can I solve this Problem??? I have a second question regarding the Quality of the mesh. Is the above mentioned 2.5 good enough??? Furthermore I would like to generate a mesh using blocking and pre-mesh, but I am unable to understand how does the blocking function works. When using the pre-mesh first no volume mesh is generated and second when I right-click on pre-mesh and want to generate a mesh from the pre.-mesh the interior Body is just ignored. This does not happen when using the normal mesh Generation tool. How could I mesh this Body using pre-mesh??? Do i have to generate a second block using the geometry of the Body?? and second for such a Body I do not know which curves I shall associate the edges to. thank you very much for your help! + have a nice day! seitenansicht.jpg v01_20prismlayer_100s_600v_800b.jpg quality.jpg |
|
November 30, 2013, 04:44 |
|
#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
The quality of mesh required depends on the simulation. If you are doing a simple single phase simulation it is tolerant of very poor meshes. If you are doing a free surface simulation with surface tension any element more than 10% off a cube is a bad idea. So you have to evaluate it for your specific case.
|
|
December 1, 2013, 17:09 |
|
#3 |
New Member
Join Date: Nov 2013
Posts: 2
Rep Power: 0 |
thank you ghorrocks!
could you help me out with the .cfx5 issue?? ICEM CFD will only write a .cfx5 file and my CFX v14.5 needs a plain .cfx. How can I convert a cfx5 to cfx??? |
|
December 1, 2013, 21:35 |
|
#4 | |
Senior Member
Chris DeGroot
Join Date: Nov 2011
Location: Canada
Posts: 414
Rep Power: 17 |
Quote:
|
||
|
|
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 07:34 |
3D Hybrid Mesh Errors | DarrenC | ANSYS Meshing & Geometry | 11 | August 5, 2013 06:42 |
[snappyHexMesh] Layers:problem with curvature | giulio.topazio | OpenFOAM Meshing & Mesh Conversion | 10 | August 22, 2012 09:03 |
different CFX Pre and Post mesh region | mactech001 | CFX | 9 | April 11, 2010 21:08 |
How to control Minximum mesh space? | hung | FLUENT | 7 | April 18, 2005 09:38 |