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Help me to solve this error

Posted 12 juin 2020, 06:26 UTC−4 3 Replies

Sundaramahalingam S
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Failed to find a solution. Singular matrix.

There are 5896 void equations (empty rows in matrix) for the variable comp1.Az. at coordinates: (0.0541453,0.02559), (0.054005,0.0258867), (0.048879,0.0346035), (0.0486893,0.0348713), (0.0538274,0.0262506), ... and similarly for the degrees of freedom (empty columns in matrix). Returned solution is not converged. Not all parameter steps returned.

3 Replies Last Post 15 juin 2020, 08:56 UTC−4
Jeff Hiller COMSOL Employee

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Posted: 4 years ago 12 juin 2020, 09:22 UTC−4

Hello Sundaramahalingam,

Please consider posting your mph file. It's near impossible to help you without it.

Best,

Jeff

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Jeff Hiller
Hello Sundaramahalingam, Please consider posting your mph file. It's near impossible to help you without it. Best, Jeff
Sundaramahalingam S
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Posted: 4 years ago 13 juin 2020, 06:00 UTC−4
Updated: 4 years ago 15 juin 2020, 00:11 UTC−4

Dear Jeff, Thanks for your reply. Pl find the attached mph file. Help me to find my mistakes and suggest me on how to choose suitable mesh.

Dear Jeff, Thanks for your reply. Pl find the attached mph file. Help me to find my mistakes and suggest me on how to choose suitable mesh.

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Jeff Hiller COMSOL Employee

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Posted: 4 years ago 15 juin 2020, 08:56 UTC−4

Please post your mph file, not mphbin.

Best,

Jeff

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Jeff Hiller
Please post your mph file, not mphbin. Best, Jeff

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