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duplicate variable name when add moving mesh (Ale)

Posted 2009年10月21日 GMT-4 11:31 2 Replies

Xin Jin
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Hi,

I am working on transport phenomena (heat and mass transfer). Besides, I also have size change problem so I add moving mesh (Ale) to my model. But the problem is when I add moving mesh, I will get the same error that there are duplicate variable (Z). I do not know why...z is the direct variable. Is there anyone can help? Thanks in advance,

Regards,

Xin
2 Replies Last Post 2015年9月19日 GMT-4 08:26
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 2 decades ago 2009年10月21日 GMT-4 18:11
Hi

normally lowwer case x,y,z are the coordinate defined variabled, whileupes X,Y,Z are the ALE reference for the frames. Are you sure you do not use Z somewhere else.
Check in the model tre, under "geom" the coordinate variables, and under the "physics" the dependent variable names

Good luck
Hi normally lowwer case x,y,z are the coordinate defined variabled, whileupes X,Y,Z are the ALE reference for the frames. Are you sure you do not use Z somewhere else. Check in the model tre, under "geom" the coordinate variables, and under the "physics" the dependent variable names Good luck
Yuhong Chen
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Posted: 9 years ago 2015年9月19日 GMT-4 08:26
Hi Ivar,

I am dealing with a similar model with XinJin. I simulate the mass transport and flow of a binary liquid mixture, as well as a moving mesh. But the mass fraction of one specie is over 1 while the other's is less than zero. Do you have any idea about what makes this happen? Looking forward to your reply.

Thanks in advance!

Yuhong
Hi Ivar, I am dealing with a similar model with XinJin. I simulate the mass transport and flow of a binary liquid mixture, as well as a moving mesh. But the mass fraction of one specie is over 1 while the other's is less than zero. Do you have any idea about what makes this happen? Looking forward to your reply. Thanks in advance! Yuhong

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