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

Aeroacoustics of Low Mach Number Flows: Fundamentals, Analysis and Measurement, Second Edition provides a detailed introduction to sound radiation from subsonic flow over moving surfaces. This phenomenon is the most widespread cause of flow noise in engineering systems, including fan noise, rotor noise, wind turbine noise, boundary layer noise, airframe noise and aircraft noise. This fully updated new edition includes additional problems, illustrations and summary materials to support readers. New content covers Rapid Distortion theory (RDT), boundary layer wall pressure fluctuations, and flow induced sound at surfaces. Themes addressing non-compressible flows have also been added, offering coverage of hydroacoustic as well as aeroacoustic applications. New support materials for this edition include course outlines, problem sets, sample MATLAB codes and experimental data to be found at www.aeroacoustics.net. Addresses, in detail, sound from rotating blades, ducted fans, airframes, boundary layers, and more Presents theory in such a way that it can be used in computational methods and calculating sound levels Includes coverage of different experimental approaches to this subject INDICE: 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

• ISBN: 978-0-443-19112-1
• Editorial: Academic Press
• Encuadernacion: Rústica
• Páginas: 722
• Fecha Publicación: 27/09/2023
• Nº Volúmenes: 1
• Idioma: Inglés