Aeroacoustics of Low Mach Number Flows: Fundamentals, Analysis, and Measurement provides a comprehensive treatment of sound radiation from subsonic flow over moving surfaces, which is the most widespread cause of flow noise in engineering systems. This includes fan noise, rotor noise, wind turbine noise, boundary layer noise, and aircraft noise.
Beginning with fluid dynamics, the fundamental equations of aeroacoustics are derived and the key methods of solution are explained, focusing both on the necessary mathematics and physics. Fundamentals of turbulence and turbulent flows, experimental methods and numerous applications are also covered.
The book is an ideal source of information on aeroacoustics for researchers and graduate students in engineering, physics, or applied math, as well as for engineers working in this field.
Supplementary material for this book is provided by the authors on the website [external URL] The website provides educational content designed to help students and researchers in understanding some of the principles and applications of aeroacoustics, and includes example problems, data, sample codes, course plans and errata. The website is continuously being reviewed and added to.
- Explains the key theoretical tools of aeroacoustics, from Lighthill's analogy to the Ffowcs Williams and Hawkings equation
- Provides detailed coverage of sound from lifting surfaces, boundary layers, rotating blades, ducted fans and more
- Presents the fundamentals of sound measurement and aeroacoustic wind tunnel testing
Please Note: This is an On Demand product, delivery may take up to 11 working days after payment has been received.
Part 1: Fundamentals 1. Introduction 2. The equations of fluid motion 3. Linear acoustics 4. Lighthill's acoustic analogy 5. The Ffowcs Williams and Hawkings equation 6. The linearized Euler equations 7. Vortex sound 8. Turbulence and stochastic processes 9. Turbulent flows
Part 2: Experimental approaches 10. Aeroacoustic testing and instrumentation 11. Measurement, signal processing, and uncertainty 12. Phased arrays
Part 3: Edge and boundary layer noise 13. The theory of edge scattering 14. Leading edge noise 15. Trailing edge and roughness noise
Part 4: Rotating blades and duct acoustics 16. Open rotor noise 17. Duct acoustics 18. Fan noise
Stewart Glegg is currently the Director of the Center for Acoustics and Vibration at FAU. He was an Associate Editor for the AIAA Journal (1994-97) and serves on the editorial board of the Journal of Sound and Vibration and the Journal of Aeroacoustics. In May 2004 he was awarded the American Institute for Aeronautics and Astronautics Aeroacoustics Award for "Outstanding contributions to the understanding and reduction of fan noise in turbo machinery". He has published over 140 technical papers in leading scientific and engineering journals.
William Devenport joined the faculty at the Department of Aerospace and Ocean Engineering at Virginia Tech in 1989 and has built an extensive research program centered on experimental studies of aerodynamics and aeroacoustics. He is Director of the Virginia Tech Stability Wind Tunnel and Director of the Center for Renewable Energy and Aerodynamic Testing (CREATe). He has published over 170 technical articles and is recognized for his contributions to the understanding of vortex dominated flows, roughness noise, leading edge noise and noise from inhomogeneous turbulence as well as contributions to aeroacoustic facility design and instrumentation.