Parviz Moin Franklin P. and Caroline M. Johnson Professor of Mechanical Engineering Stanford University Presentation Title: High fidelity computation of complex turbulent flows Abstract: We summarize our recent progress in the development of the large eddy simulation (LES) technique for prediction of multi-physics complex turbulent flows. A pacing item for LES of complex flows is the use of appropriate numerical methods. Here, we emphasize the importance of adherence to higher conservation principles and grid quality to mitigate the detrimental effect of numerical errors on turbulence fluctuations. Numerical experiments and the appropriate constitutive equations for evaluation of subgrid scale models are discussed. In particular, we consider prediction of laminar/turbulent transition on a flat plate. As an example of the validation of the unstructured mesh LES technology, results are presented from numerical simulations of flow over a high lift system (multi-element wing) and separation control using synthetic jet actuators. An important application of LES is in prediction of aerodynamic noise. Recent computations of noise from supersonic exhaust jets and flow over solid objects are described. We will contrast and compare direct computation of noise vs noise computed using acoustic analogies. Biography: Parviz Moin is the Franklin P. and Caroline M. Johnson Professor of Mechanical Engineering at Stanford University. He received his Bachelors degree in Mechanical Engineering from the University of Minnesota in 1974 and his Masters and Ph.D. degrees in Mathematics and Mechanical Engineering from Stanford in 1978. He held the posts of National Research Council Fellow, Staff Scientist and Senior Staff Scientist at NASA Ames Research Center. He joined the Stanford faculty in September 1986. He founded the Center for Turbulence Research and the Stanford's Institute for Computational and Mathematical Engineering. Currently he is Director of the Center for Turbulence Research and the Department of Energy's Advanced Simulations and Computing Center at Stanford. He is actively involved in the editorial boards of the Annual Review of Fluid Mechanics, the Journal of Computational Physics, the Physics of Fluids, SIAM Journal of Multi-Scale Modeling and Simulation, and the Journal of Flow Turbulence and Combustion. Prof. Moin pioneered the use of direct and large eddy simulation techniques for the study of turbulence physics, control and modelling concepts and has written widely on the structure of turbulent shear flows. His current interests include: aerodynamic noise and hydro-acoustics, flow control and optimization, large eddy simulation, turbulent combustion, aero-optics, parallel computing and numerical methods. Prof. Moin has been awarded NASA's Exceptional Scientific Achievement Medal, the AIAA Lawrence Sperry Award, the Fluid Dynamics Prize of the American Physical Society, AIAA Fluid Dynamics Award, the NASA Outstanding Leadership Medal, the Outstanding Achievement Award of the University of Minnesota, the Humboldt Prize of the Federal Republic of Germany, a Doctores Honoris Causa from the Universidad Politecnica de Madrid. In 2009 he was recognized by the Chinese Academy of Sciences with an Einstein Professorship. He is recognized as an ISI highly cited researcher. He is a fellow of the American Physical Society and AIAA and is a member of the National Academy of Engineering