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Non-isothermal flow problem

Posted 18 apr 2012, 09:49 GMT-4 Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD) Version 4.2a 3 Replies

Ross Clarke
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Hi there,

I am trying to create a model that is similar to the cold water glass model found within the comsol model library. However, I want to have a temperature governed by a step function at the bottom (which I have) and a cold temperature at the top that I just define in the initial values.

However, when I try to compute the model, an error appears that says that the time-dep solution is not converging, could I get some help with this please!

Thanks

Ross

3 Replies Last Post 10 apr 2013, 10:12 GMT-4
Ross Clarke
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Posted: 1 decade ago 18 apr 2012, 09:53 GMT-4
Exact error:

Nonlinear solver did not converge
Time=(arbitrary time)
Last time step is not converged
-FeatureTime-Dep Solver 1 (Sol1/t1)
- Error: Nonlinear ssolver did not converge


Thanks
Exact error: Nonlinear solver did not converge Time=(arbitrary time) Last time step is not converged -FeatureTime-Dep Solver 1 (Sol1/t1) - Error: Nonlinear ssolver did not converge Thanks
Rajat Tyagi
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Posted: 1 decade ago 17 giu 2012, 00:04 GMT-4
Same results...Did you figure a solution?
Same results...Did you figure a solution?
Vo Thanh Tung
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Posted: 1 decade ago 10 apr 2013, 10:12 GMT-4
Hi there,

I am trying to create a model similar to the cold water glass model found within the comsol model library. However, I would like to change the level of water in the glass, not full.

Help me to solve this problem?
Thanks

Vo Thanh Tung
Hi there, I am trying to create a model similar to the cold water glass model found within the comsol model library. However, I would like to change the level of water in the glass, not full. Help me to solve this problem? Thanks Vo Thanh Tung

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