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Do successfully worked MHD module examples exist?

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Old   December 10, 2012, 02:05
Default Do successfully worked MHD module examples exist?
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Yafei Li
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I tried to simulate the plasma arc welding process, I found MHD module iperfectly suits my need, but haven't worked out anything yet, all the variables in user defined memory are zeroes.



I would be very very grateful if anyone can share a successfully worked MHD module example
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Old   January 20, 2013, 11:08
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Originally Posted by Peterpanza View Post
I tried to simulate the plasma arc welding process, I found MHD module iperfectly suits my need, but haven't worked out anything yet, all the variables in user defined memory are zeroes.



I would be very very grateful if anyone can share a successfully worked MHD module example

hi friends
I have the same problem , do you solve it ?
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Old   January 20, 2013, 21:30
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Originally Posted by nasser View Post
hi friends
I have the same problem , do you solve it ?
yeah,i had ,or i should say I hadn't
cause it just can not solve that kind of problem.
Now I am trying to solve it in old way with UDF and UDS,luckily,it is a 2-D module.
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Old   January 20, 2013, 21:34
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Originally Posted by nasser View Post
hi friends
I have the same problem , do you solve it ?
well, I mean i need it to work in this way:
put a current in the middle, and it generates a magnetic field,then put the Lorenzo force in the momentum equations as source term.
Maybe it can do that, but I failed to discover how
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Old   January 21, 2013, 11:22
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Yanlong Li
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Did you use VOF model together?
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Old   January 22, 2013, 02:47
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Did you use VOF model together?
Sorry pal,i dont need VOF to solve my problem, it is only a single phase problem
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Old   January 22, 2013, 02:58
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hi friends
I think I can use MHD in my model but I dont Know about Accuracy of it.
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Old   January 22, 2013, 03:13
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hi friends
I think I can use MHD in my model but I dont Know about Accuracy of it.
Do you have induced magnetic field in your model?
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Old   January 22, 2013, 05:32
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Do you have induced magnetic field in your model?
yes , I induce magnetic field in my model and it worked .
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Old   January 22, 2013, 06:37
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yes , I induce magnetic field in my model and it worked .
Do you mean you have a existing current,which is intended to induce a magnetic field?
May I know your model in detail?
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Old   January 26, 2013, 12:29
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[QUOTE=Peterpanza;4a current to induce a magnetic field !
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Old   January 26, 2013, 12:38
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Do you mean you have a existing current,which is intended to induce a magnetic field?
May I know your model in detail?
No , I only have magnetic field . fluent cant model a current to induce a magnetic field .
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Old   January 27, 2013, 21:25
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Originally Posted by nasser View Post
No , I only have magnetic field . fluent cant model a current to induce a magnetic field .
yeah.....i had spend weeks figured that out. Thx anyway
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