What is meant by the error "DAE is structurally inconsistent"?

Malik M Tahiyat Plasma Physics and Chemistry

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I am trying to model a 2 D nonequilibrium plasma with an external Circuit. The same model works fine in 1D but when I try to make a 2D axisymmetric model, i get the error "DAE is structurally inconsistent". Can anyone give an idea where to start looking for?

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Thanking you,
-Malik M Tahiyat
Graduate Research Assistant,
Department of Mechanical Engineering
University of South Carolina (USC)
300 Main Street, Room A 137
Phone: +1(803)-318-0274

2 Replies Last Post 11 Apr 2020, 18:47 GMT-4
Dave Greve Certified Consultant

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Posted: 3 months ago 29 Mar 2020, 14:16 GMT-4

Usually when I see this error it is because of a floating electrical circuit node.

Usually when I see this error it is because of a floating electrical circuit node.

Malik M Tahiyat Plasma Physics and Chemistry

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Posted: 3 months ago 11 Apr 2020, 18:47 GMT-4

Thanks Dave,

In my case, I found that I had not given some of the boundary conditions correctly and did not click on 'calculate from mass constraint' and 'calculate from electroneutrality constraint' at specific species in the plasma module.

I posted a new discussion. I would be grteful if you can take a look at my query.

-------------------
Thanking you,
-Malik M Tahiyat
Graduate Research Assistant,
Department of Mechanical Engineering
University of South Carolina (USC)
300 Main Street, Room A 137
Phone: +1(803)-318-0274
Thanks Dave, In my case, I found that I had not given some of the boundary conditions correctly and did not click on 'calculate from mass constraint' and 'calculate from electroneutrality constraint' at specific species in the plasma module. I posted a new discussion. I would be grteful if you can take a look at my query.

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