|
[Sponsors] |
July 19, 2013, 05:01 |
Refinement Region
|
#1 |
New Member
Tom
Join Date: Jul 2013
Posts: 7
Rep Power: 12 |
Hello everyone,
i am trying to generate the mesh with snappyHexMesh but when i want to visualise it on paraView i can't see the refinement region that i have specified around the object. I feel that it has to do with the physical memory of my computer but, right now, i want to hope to another explanation. Thanks in advance. |
|
July 19, 2013, 05:38 |
|
#2 |
Senior Member
Join Date: Aug 2010
Location: Groningen, The Netherlands
Posts: 216
Rep Power: 18 |
Hi samy902,
welcome to the forum. Before answering your question, please be advised that there are some forum-rules which make life of the users little bit easier, so one of them is to post questions in the proper subforum, to ease the search for other users. Since you mentioned snappyHexMesh in your post, this would have been the proper channel for you. Another rule is that one who asks the questions tries to provide as much information as possible to give the other users a clear picture of what is wrong. For further hints have a look here: http://www.cfd-online.com/Forums/ope...-get-help.html Now looking at your question you will quickly notice that when trying to answer it, every outstanding person will have to guess for we don't know: - what looks your snappyHexMeshDict like - don't have a picture of your geometry pointing out the problem - don't have a log file of the meshing process which eventually contains warnings - evtl. the checkMesh result gives also a hint (what I don't expect in this particular case, but you never know since its a meshing problem) Everything I would tell you know would be a wild guess so I'll leave it and wait for more information ;-) I hope I could contribute regards |
|
July 19, 2013, 07:33 |
Refinement region
|
#3 |
New Member
Tom
Join Date: Jul 2013
Posts: 7
Rep Power: 12 |
Hi ColinB,
i am really sorry, you are absoluterly right. I have added a pdf file to point out my problem and a zip file that contains the snappy.log and snappyHexMeshDict. I hope that helps. Thanks again. |
|
July 19, 2013, 08:27 |
|
#4 |
Senior Member
Join Date: Aug 2010
Location: Groningen, The Netherlands
Posts: 216
Rep Power: 18 |
Hey samy902,
the only obvious thing I could find was Code:
refinementRegions { refinementBox1 { mode inside; levels ((1E15 1)); } } number instead of 1.0 which you used Note: that the first number in the round brackets is actually irrelevant and it is just a dummy value But you mentioned that you have troubles with your memory. I don't think this is the problem for otherwise the calculation would crash totally. However you are hitting the maxGlobalCell value (you specified 2 Million and with refinement level 5 of 6 you have already 3.8 Mio.) Maybe this is the reason why he refuses to refine the box. Maybe with these two hints you can start trying to solve your problem. regards |
|
July 19, 2013, 08:38 |
Refinement region
|
#5 |
New Member
Tom
Join Date: Jul 2013
Posts: 7
Rep Power: 12 |
I fixed it. As you mentioned cause of the fact that i am hitting maxCells it can not refine anymore. I tried the a less refined case in BlockMesh ( simpleGrading (1 1 1) ) than the one before ( simpleGrading (1 1 15) ) and it totally solved my problem. I will try your proposal as well to check if i can decrease the refinement level and keep the higher simpleGrading. Thanks again for your help colinB.
Regards samy |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[Commercial meshers] Using starToFoam | clo | OpenFOAM Meshing & Mesh Conversion | 33 | September 26, 2012 04:04 |
[snappyHexMesh] Weird snapping outside a refinement region | jasimpson89 | OpenFOAM Meshing & Mesh Conversion | 0 | July 29, 2012 20:46 |
killed "snappyHexMesh" | parkh32 | OpenFOAM Pre-Processing | 2 | April 8, 2012 17:12 |
[snappyHexMesh] snappyHexMesh aborting | Tobi | OpenFOAM Meshing & Mesh Conversion | 0 | November 10, 2010 03:23 |
[Gmsh] Import gmsh msh to Foam | adorean | OpenFOAM Meshing & Mesh Conversion | 24 | April 27, 2005 08:19 |