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initial parameter problem

Posted 1 lug 2010, 10:06 GMT-4 1 Reply

Guangji Ji
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Hi,
I try to assembly three 2-D models in comsol. When I extruse one of the boundary value in a 2-D domain toward to another boundary of 2-D domain as boundary value. In the stationary slover condition, COMSOL does not work and give the following information:

Error:
Failed to find a solution for the initial parameter:
The relative error (0.00037) is greater than the relative tolerance.
Returned solution has not converged.

How can I do in the next ? thanks a lot !
1 Reply Last Post 17 set 2010, 20:12 GMT-4
COMSOL Moderator

Hello Guangji Ji

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Jose Rey
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Posted: 1 decade ago 17 set 2010, 20:12 GMT-4
Same problem here with the AC/DC electric currents 3D app. mode. I am using the paradiso solver through matlab (comsol 3.5a). If I would be using comsol multiphysics directly, I would try changing the relative tolerance on the nonlinear settings within the stationary solver settings. What is the string necessary to change this property through scripting?

Thanks
Same problem here with the AC/DC electric currents 3D app. mode. I am using the paradiso solver through matlab (comsol 3.5a). If I would be using comsol multiphysics directly, I would try changing the relative tolerance on the nonlinear settings within the stationary solver settings. What is the string necessary to change this property through scripting? Thanks

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