How Can I Solve for the Temperature of a Spiral Inductor in Comsol Multiphysics?

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SUMMARY

This discussion focuses on modeling the temperature of a spiral inductor using COMSOL Multiphysics, specifically when placed in a glass material over a substrate. The user seeks guidance on selecting the appropriate solver for heat transfer by conduction and conductive media DC while encountering issues with a singular matrix error. The response emphasizes the importance of correctly defining the properties of all elements in the model to avoid singular matrix problems.

PREREQUISITES
  • Familiarity with COMSOL Multiphysics software
  • Understanding of heat transfer principles, specifically conduction
  • Knowledge of electrical properties of conductive materials
  • Experience with modeling techniques in multiphysics environments
NEXT STEPS
  • Research the use of the Heat Transfer Module in COMSOL Multiphysics
  • Learn how to define material properties accurately in COMSOL
  • Explore troubleshooting techniques for singular matrix errors in finite element analysis
  • Investigate the setup of DC current simulations in COMSOL
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Engineers and researchers involved in thermal modeling, electrical engineers working with inductors, and users of COMSOL Multiphysics seeking to optimize their simulations for heat transfer applications.

lycoss
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Hi, this is my first post.

I'm new in using comsol multiphysics and I'm trying to model a spiral inductor which is placed in an another material (glass) which is over a substrate. The pads of the inductor are outside the material. What I'm trying to find out is, the temperature of the surface of the device given given a dc current of the inductor. i don't know which solver to use working with heat transfer by conduction and conductive media dc.

I usually get a message of singular matrix.

Thanks in advance!
 

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A singular matrix is often a sign that something wasn't defined properly in the model. Make sure that the properties of all elements are set properly for all the physics used.
 

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