In addition, the multiphysics interfaces also determine how this system of equations is discretized to form the corresponding numerical model equations, for example, using a finite element method, and how these equations are solved. The multiphysics interfaces formulate mathematical models as coupled systems of partial differential equations, which describe the coupled physics phenomena. They are available for several disciplines of science and engineering, including electromagnetics, structural mechanics, acoustics, fluid flow, heat transfer, and chemical engineering. The multiphysics interfaces are automatically preconfigured for the specific combination of multiple physics phenomena being modeled. The automatic approach greatly simplifies the modeling process by adding all the involved physics interfaces and multiphysics couplings using multiphysics interfaces. We will explain what this automatic approach is, detail the advantages of using it, and go over how to employ this functionality in a multiphysics model. This yields an almost fully automatic approach, whereas the manual approach with predefined couplings and manual approach with user-defined couplings require manual tuning to implement. In COMSOL Multiphysics ®, when defining the physics settings for a multiphysics model, you can completely streamline the process by utilizing the predefined multiphysics interfaces. Defining Multiphysics Models Automatically with Multiphysics Interfaces
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