Theory for the Electromagnetic Heating Interfaces
COMSOL Multiphysics provides four multiphysics interfaces for handling electromagnetic heating in the Heat Transfer interfaces:
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The Joule Heating Interface
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The Laser Heating Interface (requires the Wave Optics Module)
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The Induction Heating Interface (requires the AC/DC Module for 3D models)
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The Microwave Heating Interface (requires the RF Module)
They all have in common the multiphysics coupling feature Electromagnetic Heating, which adds weak contributions due to resistive losses in the domains and boundaries, and shares the temperature variable with the electromagnetics interfaces. The underlying theory can be found in the AC/DC Module User’s Guide, RF Module User’s Guide, and Wave Optics Module User’s Guide.