Joe Oefelein received a Doctorate in Mechanical Engineering from The Pennsylvania State University in May 1997, a Master of Science Degree in Mechanical Engineering from Penn State in December 1992 and a Bachelor of Science Degree in Mechanical Engineering with highest honors from Rutgers University in May 1989. He is currently employed as a Principal Member of Technical Staff at the Sandia National Laboratories Combustion Research Facility. His research interests are interdisciplinary, with focus on the theory, numerical modeling and analysis of complex fluid flows where turbulence, combustion, high-pressure phenomena and (or) multiphase phenomena play a controlling role. Concurrent interests are focused in the general area of numerical methods for partial differential equations, with emphasis placed on computational fluid dynamics (CFD), applied numerical analysis, large-scale scientific computing and parallel processing. He has extensive experience in the development and application of the large-eddy-simulation (LES) technique and the related subgrid-scale models to both fundamental flows and device-scale components such as liquid-rocket injectors, gas-turbine combustors and internal combustion engines.