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Problem with Convergence

Posted Feb 20, 2013, 12:17 a.m. EST Fluid & Heat, Interfacing, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Geometry, Installation & License Management, Materials, Mesh, Modeling Tools & Definitions, Parameters, Variables, & Functions, Results & Visualization, Studies & Solvers Version 4.3a 1 Reply

Nithin
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I was running my HT+NITF model for simulation for 2 days. But, still I was not able to obtain the convergence. The progress of my simulation after 2 days of running is as follows (in the picture "Untitled.jpg).. Please let me know how to attain convergence... I am unable to make changes as I was being suggested each correction at each point of problem which is not working out perfectly. The log information at this stage is as follows... (Log data at 4.02 PM 19th feb.jpg).

Please help me out in getting a solution.



1 Reply Last Post Feb 20, 2013, 1:53 a.m. EST
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Feb 20, 2013, 1:53 a.m. EST
Hi

why are you running HT + NITF, NITF is already solving for T and the others, so you are solving twice for T and J, and these are then probably NOT correctly linked in you model.

Always check the dependent variables and the equations for all complex physics to avoid adding in two that solves for the same varaibles

--
Good luck
Ivar
Hi why are you running HT + NITF, NITF is already solving for T and the others, so you are solving twice for T and J, and these are then probably NOT correctly linked in you model. Always check the dependent variables and the equations for all complex physics to avoid adding in two that solves for the same varaibles -- Good luck Ivar

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