Aeroacoustics

Aeroacoustics is centrally concerned with the generation and propagation of sound through a fluid. The prefix 'aero' implies air, but one can also include sound in other fluids, such as water (also called hydroacoustics). Aeroacoustics is part of the broader topic of acoustics, the latter of which can include sound propagation through other types of media, including solids, plasmas, etc.  Our research is primarily concerned with the generation, propagation, and minimization of sound produced by various engineering systems. Through a combination of theory and computation we analyze complex systems from a physics-based perspective, often solving the three-dimensional compressible Navier-Stokes equations directly. Current aeroacoustic research projects include the prediction and reduction of supersonic jet noise, the radiation of sound by compliant structures, the prediction of the human voice, and the generation of sound by heated gas interacting with a high pressure turbine row.  These projects receive their funding from NASA (Glenn Research Center), the Department of Energy, the U. S. Airforce, and the AeroAcoustics Research Consortium.  Computational research is conducted using computers operated by the Department, by the University, by NSF, and by the Department of Defense.

Faculty Researchers:

  • D. Bodony - Aeroacoustics, Computational Fluid Dynamics, Combustion

  • J. Freund - Aerodynamic sound, compressible turbulence, numerical methods, large-scale parallel computing, molecular dynamics simulation of nanometer scale flows and heat transfer in solids