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Last time step is not converged

Posted Aug 4, 2015, 5:54 a.m. EDT Version 4.3a 0 Replies

Esai Fotso Tagah
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Hallo sir,

hi have a question. when i simulate i have forever this Picture.

Nonlinear solver did not converge.
Failed to evaluate variable.
Variable: mod1.fpt.mu local, Geometry: Particles
Failed to evaluate variable.
Variable: mod1.fpt.mu, Defined as: mod1.fpt.mu local
Failed to evaluate variable.
Variable: mod1.fpt.taup, Defined as: ((mod1.fpt.rhop*(mod1.fpt.dp^2))/(18*mod1.fpt.mu))
Failed to evaluate variable.
Variable: mod1.fpt.Ftx, Defined as: (((mod1.fpt.domvar df1*((mod1.u-mod1.fpt.vx)*mod1.fpt.mp))/mod1.fpt.taup)-(((mod1.fpt.Z*e const)*d(mod1.V,x))*mod1.fpt.domvar ef1))
Failed to evaluate expression.
Expression: d((test(mod1.qx)*(-mod1.qxtt+(mod1.fpt.Ftx-d(mod1.qx,t)*d(mod1.fpt.mp,t))/mod1.fpt.mp))*(1),{test1})
Time : 0.03255101414078437
Last time step is not converged.

how can i resolt it.

thank's
0 Replies Last Post Aug 4, 2015, 5:54 a.m. EDT
COMSOL Moderator

Hello Esai Fotso Tagah

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