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[waves2Foam] Difficulties using waveDyMFoam and waveFlumeDyMFoam |
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January 8, 2016, 16:47 |
Difficulties using waveDyMFoam and waveFlumeDyMFoam
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#1 |
New Member
Join Date: Dec 2015
Posts: 27
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Hi everyone,
I am trying to couple waves2Foam with interDyMFoam by 'loosely' following the instructions on the wiki. I was able to compile and run a case successfully on another computer but I am trying to repeat the process on a different one. I have waveFoam running successfully, I have made the modifications in order to make the solve waveDyMFoam, however I am running into an error when running wmake. I attached the log file containing the error. Thanks so much for any help that anyone can give. |
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January 9, 2016, 15:24 |
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#2 |
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I figured it out. The problem was in my options file. Thanks!
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January 14, 2016, 11:44 |
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#3 |
New Member
Join Date: Dec 2015
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Hi,
Another question here. I am running the case that was provided on the wiki page for waveFlumeDyMFoam. I am able to run the case with different types of waves and the mesh seems to be moving correctly. However, I keep getting the error in the file attached. For a solitary wave run, the error occurs after the wave has passed the block and hits the relaxtion zone. For a stoke's first wave, the error occurs before the wave even reaches the block. I tried to checkMesh after the run and there are failed mesh checks at the last few time steps. The error I'm getting here is: Number of edges not aligned with or perpendicular to non-empty directions: 1358 Does anyone have any idea what this might be and how to fix it? Thanks so much. |
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January 14, 2016, 11:46 |
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#4 |
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Sorry, here is the output that I meant to attach to the previous post.
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January 19, 2016, 13:16 |
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#5 |
Senior Member
Niels Gjoel Jacobsen
Join Date: Mar 2009
Location: Copenhagen, Denmark
Posts: 1,900
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Good afternoon all,
@Toodles: This sounds as a problem with the mesh deformation that allows for motions perpendicular to the empty patches. I do not know, which case that you are referring to. Kind regards, Niels
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Please note that I do not use the Friend-feature, so do not be offended, if I do not accept a request. Last edited by wyldckat; August 25, 2018 at 12:33. Reason: removed answers to other posts that were on the main thread |
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January 21, 2016, 19:32 |
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#6 |
New Member
Join Date: Dec 2015
Posts: 27
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Hi all,
I can't seem to run the dynamic wave flume case. I run waveDyMFoam and everything starts off fine. It runs for quite a while with no visible problems, then all of the sudden throws the error attached. Nothing seems to be diverging or anything, it just randomly stops. I have run checkMesh and all of the meshes are ok. I'm assuming the problem is with the solvers I used in fvsolution, but I can't not figure it out. Any help would be very appreciated; I've been trying to get this working for weeks. |
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January 24, 2016, 09:39 |
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#7 |
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Stefan
Join Date: Jan 2010
Location: Kiel, Germany
Posts: 81
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@toodles
Just had a quick view. As you may notice by #3 the error was issued by the AMG solver terminated with fpe. Try another one, see dynamic mesh tutorials. |
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January 27, 2016, 21:56 |
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#8 |
New Member
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Thanks for the suggestion. It seems that my error is related to the innerDistance and outerDistance parameters for the sixDoFRigidBodyMotion solver. These are very weird parameters to me as they never seem to do what I want them to. It looks like the cells at some point are getting deformed so small that the Co number diverges. Does anyone have any suggestion on how to properly use this feature. I have tried searching all over and can't seem to find a good explanation.
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January 31, 2016, 03:28 |
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#9 |
Member
Stefan
Join Date: Jan 2010
Location: Kiel, Germany
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@toodles
Interesting... What kind of mesh motion is needed for yor case? What OpenFOAM version do you prefer for that? The extend-project provides a tet-based mesh motion solver that is more robust than all cell-based approaches of the vanilla one. |
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February 3, 2016, 22:21 |
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#10 | |
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Quote:
Thanks |
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February 4, 2016, 13:40 |
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#11 |
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Here is the case I am trying to run. If any of you could try to run this and see if you can get it working, I would really appreciate it!
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