Jet Aeroacoustics is a growing area, a function of the significant projected growth in global air transportation. With the era of widespread supersonic flight and the proliferation of general aviation aircraft on future horizons, the noise generated by the high speed flow from aircraft engine exhaust is of great concern for communities near airports, for passengers in the aircraft's cabin, and for the structural integrity of the airframe. In addition, there are a number of industrial situations that desire lower noise from high pressure gas jets. Examples from industry include the noise from valves, burners, high pressure jets used in machining, miniature jets used for drying, and high pressure release situations in the power industry. Understanding the source of the noise itself is critical in the development of future noise reduction technologies. The book includes developments in the area of jet aeroacoustics theory, computations and experiments. Topics include: jet noise theories, simulation methodologies, predicting noise from complex geometries, design of jet noise facilities and jet noise measurements. The perspectives are provided by internationally recognized experts in the field. The book will provide a student, scientist or practicing engineer with a concise overview of developments in the field of jet aeroacoustics and a good starting point for further research. Book jacket.
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The source of Aerodynamic Noise
Aeroacoustics of supersonic jet issued from corrugated
Simulations of supersonic jet noise
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acoustic analogy Aeroacoustics aerodynamic AIAA AIAA Journal AIAA Paper amplitude anechoic anechoic chamber axial axisymmetric azimuthal harmonics boundary conditions boundary layer centerline chevrons coefficient comparisons components Computational Aeroacoustics computed control surface convective corrugation cubic nozzle density diameter direction domain downstream duct dynamic effect Euler equations experimental far-field flow field fluctuations Fluid Mechanics FWH surfaces grid heated jet helium helium-air mixture jets instability waves integral jet axis jet exit jet flow jet noise Large Eddy Simulation Lighthill Lighthill's linear Mach number mean flow measurements method mode noise prediction noise sources nozzle exit OASPL obtained parameters peak potential core pressure field propagation ratio region Reynolds number round jet scale SGS model shear layer solution sound pressure levels spectrum streamwise Strouhal number structures subsonic jet supersonic supersonic jet tabs Tanna temperature turbulent jet upstream velocity vortex ring vortices wave numbers wavenumber