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Simulation crashes at high tolerance

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Old   February 7, 2011, 11:40
Default Simulation crashes at high tolerance
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Vishal Nandigana
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Dear Foamers,

When I run a transport equation (Poisson Nernst Planck equation) with AC electric field as boundary conditions, I see that the simulation works fine when the tolerances are set to 7e-7, but when I run the case with tolerance 1e-11 the code crashes after some time step. What could be the reason for this behavior.

Kindly let me know.

Thanks
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