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Errors with conjugate heat transfer...
Posted 2014年4月1日 GMT-4 06:48 Fluid & Heat, Heat Transfer & Phase Change, Geometry, Materials, Mesh, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 4.3b 0 Replies
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I am new to COMSOL and I am doing simple test model of natural convection of air around hot metal cylinder. I think, that I set everything properly (like volume force etc), physics is quite easy but after 2 or 3 iterations i get errors like this:
Failed to find consistent initial values.
Undefined value found.
NaN or Inf found when solving linear system using SOR.
or similar. When i change to dierct solver it keeps increasing memory allocation factor and nothing happends.
I tried to change mesh to courser or finer, tried different solvers and options and nothing helped.
I cannot attach my model in comsol, its too big, but I can send it on email if someone would like to help.
Please help me I really run out of ideas....
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Hello Bolesław Bródka
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