COMSOL recently announced the release of COMSOL Multiphysics 4.3, its software environment for modeling and simulating any physics-based system. Major new capabilities introduced in version 4.3 include three new discipline-specific add-on modules, fast and powerful meshing, a new “Double Dogleg” solver for mechanical contact and highly nonlinear simulations and numerous user-inspired enhancements. With the debut of three new discipline-specific add-on modules – the Nonlinear Structural Materials Module, the Pipe Flow Module, and the Corrosion Module – COMSOL now offers 30 products for the simulation of multiphysics phenomena. The newest modules expand the COMSOL Multiphysics simulation platform with all-new user interfaces that help users solve the unique design challenges in each of these areas accurately and efficiently. The AC/DC Module now includes the ability to model rotating machinery in 3D. Here, a brushed DC motor simulated with the new 3D rotating machinery user interface is shown. The CFD Module introduces new, easy-to-use interfaces and added functionality for mass transport simulations influenced by turbulent mixing.