COMSOL Conference 2015, the largest event for multiphysics simulation, brought together thousands of engineers, researchers, and designers worldwide to share how the COMSOL Multiphysics® software and its Application Builder are being used in multiphysics simulation and custom application design around the world. Experts produced over 750 user-contributed papers, posters, and presentations highlighting R&D projects and best practices in electrical, mechanical, fluid, and chemical engineering.