Dr. William W. Liou received his Ph.D. degree from Penn State University in 1990. His doctoral research focuses on the theoretical modeling and computational simulations of turbulent fluid flows. He has worked as a Research Associate at the Institute for Computational Method in Propulsion at NASA Glenn Research Center for six years. His research activities at NASA involve studying the laminar and turbulent flow physics for propulsion. Since 1997, Dr. Liou has been working as an Assistant and an Associate Professor at Western Michigan University.