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ERROR #002100048 has occurred in subroutine SU_BNEXT |
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August 29, 2015, 15:19 |
ERROR #002100048 has occurred in subroutine SU_BNEXT
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#1 |
New Member
Mandar saraf
Join Date: Aug 2015
Posts: 16
Rep Power: 10 |
ERROR #002100048 has occurred in subroutine SU_BNEXT. |
| Message: | | All vertices for a fluid domain lie on boundaries. This is | | considered to be a fatal error because control volume gradients | | cannot be calculated, leading to serious discretization error. | | | | A common cause for this error is a mesh which is only one | | element thick, without symmetry or 1:1 periodicity on the lateral | | boundaries. If you have this situation, and the domain is | | two-dimensional, please change the lateral boundary conditions | | to symmetry or 1:1 periodicity. Alternatively, for | | three-dimensional simulations, please ensure that your mesh | | has at least two elements across. | | | | Execution is terminating. This error message can be bypassed by | | setting the expert parameter 'boundary vertex check = f', but | | be aware that doing so may lead to sigificant solution error. [ Moderator note: Moved posts from http://www.cfd-online.com/Forums/cfx...1100279-a.html to a new thread ] Last edited by wyldckat; August 30, 2015 at 15:32. Reason: see "Moderator note:" |
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August 29, 2015, 15:26 |
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#2 |
New Member
Mandar saraf
Join Date: Aug 2015
Posts: 16
Rep Power: 10 |
please tell me how to eliminate this error
iam trying to simulate spray dryer, i use porous media and apply interface in fluid and solid. with same set up i am getting answer, but some time iam getting this error iam very frustated with this thing almost spent my 2-3 days and night to found this but still empty hand, dont knwo what dose this error means and stteing i need to change please help me out of this .. |
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August 30, 2015, 06:31 |
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#3 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
The error you report ("All vertices for a fluid domain lie on boundaries.") is totally different to the rest of this thread. You will probably get a better response if you start a new thread for a new question in future.
This error is exactly as it is described in the error message - you have some regions of your mesh which have no internal nodes (ie all node lie on boundaries). If you are modelling a general flow domain then you are going to have to remesh with more nodes inside the domain. And please do not post duplicate posts again. You only need to post a question once. I have deleted the duplicate posts. |
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September 3, 2015, 13:55 |
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#4 |
New Member
Mandar saraf
Join Date: Aug 2015
Posts: 16
Rep Power: 10 |
thanks for your reply,
Actually iam facing this problem with only porous and fluid intraction, and as a mesh part iam meshing fluid domain using automatic meshing of ansys workbench icme cfd, 14.5 version, how to proceed for solution than ? please reply |
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September 3, 2015, 17:50 |
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#5 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
You need to generate a mesh with internal nodes. The error message makes that very clear.
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September 3, 2015, 23:35 |
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#6 |
New Member
Mandar saraf
Join Date: Aug 2015
Posts: 16
Rep Power: 10 |
sir, i have already done meshing with internal node .To cross check this i used section view in ansys meshing.
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September 4, 2015, 05:26 |
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#7 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
Somewhere in your model is a location with no internal nodes or you would not get the error message.
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September 4, 2015, 05:31 |
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#8 |
New Member
Mandar saraf
Join Date: Aug 2015
Posts: 16
Rep Power: 10 |
I agree with you. I am modelling 3mm thick perforated plate as a porous region. so might be there is the problem what do you suggest?
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September 5, 2015, 05:49 |
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#9 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
It may well be. You should be able to check it easily.
Can you post an image of what you are modelling? |
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