Aeroacoustics of Low Mach Number Flows: Fundamentals, Analysis, and Measurement

ISBN-13: 9780128096512 / Angielski / Miękka / 2017 / 552 str.

Stewart Glegg; William Devenport

Opis

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.

• 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

Recenzje

"In summary, this is an excellent new reference book for scientists and engineers with interests in the fields of aerodynamics and acoustics. The book is a comprehensive and authoritative new treatise on aeroacoustics and highly recommended for readers familiar with or new to this field." --The Aeronautical Journal

"Aeroacoustics of Low Mach Number Flows is a timely and impressive new book describing the formative developments in aeroacoustics, as well as more recent progress in the field. ...In summary, this is an excellent new reference book for scientists and engineers with interests in the fields of aerodynamics and acoustics. The book is a comprehensive and authoritative new treatise on aeroacoustics and highly recommended for readers familiar with or new to this field." -The Aeronautical Journal

Spis treści

Part 1: Fundamentals1. Introduction2. The equations of fluid motion3. Linear acoustics4. Lighthill's acoustic analogy5. The Ffowcs Williams and Hawkings equation6. The linearized Euler equations7. Vortex sound8. Turbulence and stochastic processes9. Turbulent flows

Part 2: Experimental approaches10. Aeroacoustic testing and instrumentation11. Measurement, signal processing, and uncertainty12. Phased arrays

Part 3: Edge and boundary layer noise13. The theory of edge scattering14. Leading edge noise15. Trailing edge and roughness noise

Part 4: Rotating blades and duct acoustics16. Open rotor noise17. Duct acoustics18. Fan noise

O autorze

Stewart Glegg was a professor at Florida Atlantic University until he retired in May 2023 and is now an Affiliate faculty member of CREATe at Virginia Tech. He was an Associate Editor for the AIAA Journal (1994-97) and has served 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 200 technical papers in leading scientific and engineering journals. William Devenport is Crofton Professor of Engineering at the Department of Aerospace and Ocean Engineering at Virginia Tech and leads a research program centred on experimental studies of aerodynamics and aeroacoustics. He is Director of the Virginia Tech Stability Wind Tunnel and Director of the Center for Research and Engineering in Aero/hydrodynamic Technology (CREATe). He has published over 200 technical articles and in May 2019 received the AIAA Aeroacoustics Award for "Seminal and pioneering contributions in aeroacoustics particularly in developing new experimental techniques and in the understanding of turbulence and surface roughness noise”.