Dr. William Liou presented the Barnes W. McCormick Honorary Lecture at the Penn State Aerospace Engineering department in 2016. This talk was titled “Wait, aerodynamics and what?” Liou’s lecture focused on how physics-based computer simulations solve the model differential equations of single, or multiple physics (fluid, solid, heat transfer, motions), in a coupled manner. Numerical methods and computational results were presented for a number of aerodynamic and fluid flow problems that are of fundamental and applied research interest. After graduating from Penn State in 1991, Liou worked at the NASA Glenn Research Center for six years. In 1997, he joined Western Michigan University, where he is currently professor of mechanical and aerospace engineering and has founded a number of centers, labs, and externally funded research units.