COMSOL is a software platform used for simulating and modeling various physical phenomena. It allows users to create detailed models of systems involving physics, engineering, and mathematics. The software is widely used in industries such as electronics, mechanical engineering, and biotechnology to analyze complex interactions and optimize designs. One of the key features of COMSOL is its ability to perform multiphysics simulations, which means it can handle multiple physical processes occurring simultaneously. Users can customize their models with built-in tools and add-ons, making it a versatile choice for researchers and engineers looking to solve real-world problems efficiently.