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Examples of Custom Physics
The examples in this chapter show how to create custom physics interfaces for different applications:
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Joule heating is a well known fundamental multiphysics phenomenon, but it is not the only type of electro-thermal interaction. In addition, there is the thermoelectric effect, which historically is known under three different names: the Seebeck, Peltier, and Thomson effects. The first example in this chapter shows how to use the Physics Builder to create a custom physics interface for solving generic combined Joule heating and thermoelectric effects. See The Thermoelectric Effect and the following sections.
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The Schrödinger equation describes the behavior of a quantum state in quantum mechanics. The second example in this chapter shows how to use the Physics Builder to create a custom physics interface for solving a version of the Schrödinger equation. See The Schrödinger Equation and the following sections.
Both the Physics Builder files (MPHPHB-files) and model examples (MPH-files) for these two custom physics are included in the COMSOL installation. You find the files in the demo/builder directory in your COMSOL installation directory.