Seminar: Compressible turbulence interacting with complex surfaces

Dr. J. Bodony, University of Illinois, will be presenting as part of the aerospace engineering seminar series.

Abstract:  The design of high-performance air vehicles, and their subsystems, usually relies on experience and a healthy amount of conservatism to ensure safety and reliability.  Future vehicles being considered are sufficiently different from current generation vehicles that existing semi-empirical models must be viewed with skepticism, and available experimental facilities are limited, or not available, to develop new models.  High-fidelity simulations are thus required to provide fundamental information on the behavior of flows at conditions experiments cannot yet reach, or for which diagnostics are not yet available.  The talk will highlight two examples: the interaction of a subsonic compressible, turbulent boundary layer with a porous, cavity-backed surface and high-speed laminar and turbulent boundary layers interacting with a compliant panel.  In both cases the objective is to use fully resolved, high-fidelity simulations of a compressible, viscous fluid interacting with complex (possibly dynamic) surfaces to discover and understand relevant phenomena that can affect how future experimental facilities are designed and how semi-empirical models should be constructed.  The talk will conclude with a discussion of how to analyze these systems from a flow control perspective.

Bio:  Daniel J. Bodony received his B.S. and M.S. degrees from the School of Aeronautics & Astronautics at Purdue University and his Ph.D. in Aeronautics & Astronautics from Stanford University in 2005.  After working at the NASA Ames/Stanford Center for Turbulence Research he joined the Aerospace Engineering department at the University of Illinois in late 2006 as an assistant professor, and holds affiliate positions with the Mechanical Sciences & Engineering Department and with NCSA.  Professor Bodony is a National Defense Science and Engineering Graduate fellow, an AFRL summer graduate fellow, an ARCS fellow, a senior member of the AIAA, and a member of the APS.  He received an NSF CAREER award in 2012 in Fluid Dynamics.