Computational Aeroacoustics Prof. S. H. Frankel, ME

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Computational Aeroacoustics Prof. S. H. Frankel, ME

Aeroacoustics of Wall-bounded and Separated Turbulent Flows Channel flow Separated diffuser flow Acoustic field in diffuser Large Eddy Simulation (LES) combined with accurate and dfficient numerical methods allow aeroacoustics simulations of low Mach number turbulent flows

Aeroacoustics in a Model of the Human Vocal Tract (NIH)

Swirl Combustor Aeroacoustics  Low pollutant emission combustors employ swirl for flame stabilization  Coupling between unsteady heat release and duct acoustic modes may lead to combustion instability  Ability to predict unsteady flame dynamics and coupled acoustic response critical e.g. PVC pressure fluctuations  LES with premixed flame model Swirl flame (top); flow (bottom) Precessing vortex core (PVC)