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Having problems with implementing mesh motion |
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April 13, 2017, 04:20 |
Having problems with implementing mesh motion
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#1 | |
New Member
Qiyan Zhou
Join Date: Sep 2016
Posts: 16
Rep Power: 9 |
hi
i have this problem too....have you found the solution? Quote:
Last edited by wyldckat; April 25, 2017 at 08:37. Reason: posted a few minutes apart |
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April 14, 2017, 10:30 |
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#2 | |
New Member
Qiyan Zhou
Join Date: Sep 2016
Posts: 16
Rep Power: 9 |
Quote:
have you found any solution? i have the same problem when run the case in parallel, however, it works fine in serial. after debugging the code, i found there may be some problems with "findInjectorCell.H", in which there is a function "reduce()" can you give me some help...i have stumbled here for a long time thanks in advance |
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April 16, 2017, 23:34 |
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#3 | |
New Member
Qiyan Zhou
Join Date: Sep 2016
Posts: 16
Rep Power: 9 |
Quote:
have you solved the problem now? i come across the same issue... i found that if i didnot consider the meshPhi, just change the mesh.move() to mesh.update(), and do a little change in Make files, the temperature and pressure field seem to be ok...but it brings me some issue at the beginning of injection when i try to run parallel.. however, after i make a big change to the solver(refer to sonicTurbDyMEngineFoam to do some computation of meshPhi), the weird temperature and pressure field occur... i wonder may be there is something wrong when compute the meshPhi.... can you give me some tips? thanks in advance Last edited by wyldckat; April 25, 2017 at 08:57. Reason: Added [CODE][/CODE] markers |
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April 25, 2017, 09:03 |
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#4 |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,975
Blog Entries: 45
Rep Power: 128 |
Greetings zhouqy1994,
I've moved your three posts above to a single thread, to make it easier to help, also because those threads are somewhat old now and the probability seemed low of someone from those threads answering to your posts. Regarding your questions, it's really hard to determine what's going on wrong with your experiments, without having the ability to see what you are doing exactly. Furthermore, knowing which OpenFOAM or foam-extend version or fork that you are using would make it easier to diagnose if the problem was related to the version itself, namely if it was fixed in newer versions or not. Please read the following thread for more details: How to give enough info to get help Because from the first post, my guess is that the mesh is being incorrectly manipulated, for example, a cell might be being collapsed too much, resulting in the crash. See for example the study done and reported in the following thread: https://www.cfd-online.com/Forums/op...ilitities.html Best regards, Bruno
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May 6, 2017, 04:15 |
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#5 |
New Member
Qiyan Zhou
Join Date: Sep 2016
Posts: 16
Rep Power: 9 |
thank you Bruno
Problem has been solved although i still don't know what causes the problem Besides i use foam-extend 4.0 to simulate engine spray and combustion by modifing dieselEngineFoam, more specific, combine dieselEngineFoam with sonicTurbEngineFoam to realize the layer addition and removal during the mesh motion process Thank you very much Sent from my iPhone using CFD Online Forum mobile app |
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May 17, 2017, 10:36 |
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#6 | |
New Member
raju ram bhakar
Join Date: May 2017
Posts: 11
Rep Power: 8 |
Hello zhou,
I'm facing problem in converting .stl file to .ftr format using surfaceConvert 2.stl 2.ftr Reason for conversion : refineImmersedBoundaryMesh need .ftr file to refine the mesh.(If you can tell me a way where I don't need the ftr file that will also do) At the time of compiling the fe40 for every other utility the results were shown as name_of_the_library is up to date but for only surfaceConvert I got this message Quote:
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May 19, 2017, 08:56 |
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#7 |
New Member
Qiyan Zhou
Join Date: Sep 2016
Posts: 16
Rep Power: 9 |
Hi bhakar
I am really sorry...I don't familiar with that...my mesh was generated by ICEM,and the dynamic mesh was related to layeraddutionalandremoval...neither of them is related to you problem...I feel sorry for that... Sent from my iPhone using CFD Online Forum mobile app |
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May 19, 2017, 09:15 |
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#8 |
New Member
raju ram bhakar
Join Date: May 2017
Posts: 11
Rep Power: 8 |
Hello zhou,
Thanks for your reply. I had solved the problem on my own. I installed openFoam4.1 and converted the files using OF41 and used them in FE40 and it worked. |
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May 19, 2017, 09:45 |
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#9 |
New Member
Qiyan Zhou
Join Date: Sep 2016
Posts: 16
Rep Power: 9 |
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