Stewart Glegg, William Devenport

Aeroacoustics of Low Mach Number Flows (eBook, ePUB)

Fundamentals, Analysis, and Measurement

• Format: ePub

Produktbeschreibung

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 www.aeroacoustics.net. 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

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Produktdetails

• Verlag: Elsevier Science & Techn.
• Seitenzahl: 552
• Erscheinungstermin: 15. Februar 2017
• Englisch
• ISBN-13: 9780128097939
• Artikelnr.: 47656300

Autorenporträt

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.

Inhaltsangabe

Part 1: Fundamentals 1. Introduction 2. The equations of fluid motion 3.
Linear acoustics
Part 2: Fundamentals of Aeroacoustics 4. Lighthill's acoustic analogy 5.
The Ffowcs Williams and Hawkings Equation 6. Propeller and Open Rotor Noise
Part 3: Unsteady Blade Loading 7. Amiet's approach - the Surface Source for
Thin Airfoils 8. Goldstein's approach - flows with distortion 9. Howe's and
Powell's approach - vortex sound
Part 4: Turbulent Flows 10. Stochastic processes 11. Turbulence and
Turbulent Flows 12. Wall Pressure Fluctuations in Turbulent Boundary Layers
Part 5: Broadband Flow Noise from Surface Interactions and Fans 13.
Broadband Noise from Open Rotors and Leading-edge Noise 14. Trailing Edge
and Roughness Noise 15. Duct Acoustics 16. Fan Noise
Part 6: Experimental Methods 17. Aeroacoustic Testing and Instrumentation
18. Measurement, Signal Processing and Uncertainty 19. Phased Arrays
Part 7 Advanced Mathematical Methods 20. The Theory of Edge Scattering