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help on convert v 3.5a to v.4.1

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Hi,
I'm very new in version 4.1. So I really appreciate if you can help.
I'm attaching two files the fist in v 3.5a and the second in 4.1. everything is the same in both but the first one converges while the second one ends up with this error:
Failed to evaluate variable Jacobian.
- Variable: Sw
- Geometry: 1
- Boundary: 2
the model is 2 PDEs in general form with two variables of Sw, w in 1-D.
the model is a math problem and no need for units.
Do you have any idea where the error comes from?
Many thanks,
Elham


0 Replies Last Post 10 gen 2011, 09:56 GMT-5
COMSOL Moderator

Hello Elham Ashoori

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