COMSOL Multiphusics is a large, high-level numerical simulation software. Scientific research and process calculation applied to a wide range of fields are called "the true arbitrary multiphysical field direct coupling analysis software of the first term" by scientists in the world today. Based on the finite element method, COMSOL Multiphusics has realized the simulation of real physical phenomena by solving partial differential equations (single field) or partial differential equations (multifield). By solving the physical phenomena in the real world mathematically, COMSOL Multihusics realized highly accurate numerical simulation with efficient calculation performance and excellent multi-field bidirectional direct coupling analysis capability. Acoustics, biological sciences, chemical reactions, diffusion, electromagnetics, fluid dynamics, fuel cells, earth sciences, heat conduction, microsystems, microwave engineering, optics, photonics, porous media, quantum mechanics, radio frequency, semiconductors, structural mechanics Widely applied in fields such as, transmission phenomena, wave propagation.