Simplifying A Model Of Short Subsequent Sections Containing A Common Detailed Cross-Section

J. Krah
AkerSolutions, Fornebu, Norway
Published in 2010

In COMSOL Multiphysics it is possible to implement and simulate several independent models in parallel. This can be meaningful when the different models are coupled to each other by some kind of interaction. If a part of the geometries is identical in all models, this part can be reduced in that it is implemented in only one of the geometries. In the other geometries only its solution towards its surrounding is used. The paper presents the application of a power cable going through different thermal environments. The cable has the same crosssection and current in all submodels. As the surrounding sections are short there is thermal flow in axial direction between the sections. Taking that flow into consideration improves the temperatures calculated for each section.

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