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Posted 8 févr. 2013, 23:46 UTC−5 Fluid & Heat, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Geometry, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3a 1 Reply

Nithin
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Sir,

While computing the results for my model, I got an error which says

" Failed to find consistent initial values.
Segregated group 2

Out of memory during assembly.
Last time step is not converged.
- Feature : Time - Dependent solver 1 (sol1/t1)
- Error : Failed to find consistent initial values. "

Please let me know what would be the error and what are all the probable corrections to be made??
1 Reply Last Post 9 févr. 2013, 09:52 UTC−5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 9 févr. 2013, 09:52 UTC−5
Hi

well the default initial condition all "0" is often far from optimal, why not think a little and try to add some more realistic initial conditions, or to start with a steady state to set a good starting point.

Anyhow, check your solver sub-nodes and fint the group 2 and see which variable is giving problems to the solver, then see what you can do with the initial conditions starting with those dependent variables

--
Good luck
Ivar
Hi well the default initial condition all "0" is often far from optimal, why not think a little and try to add some more realistic initial conditions, or to start with a steady state to set a good starting point. Anyhow, check your solver sub-nodes and fint the group 2 and see which variable is giving problems to the solver, then see what you can do with the initial conditions starting with those dependent variables -- Good luck Ivar

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