Description 
1 online resource : illustrations 
Contents 
Front Cover; Aeroacoustics of Low Mach Number Flows: Fundamentals, Analysis, and Measurement; Copyright; Dedication; Contents; Preface; Part 1: Fundamentals; Chapter 1: Introduction; 1.1. Aeroacoustics of low Mach number flows; 1.2. Sound waves and turbulence; 1.3. Quantifying sound levels and annoyance; 1.4. Symbol and analysis conventions used in this book; References; Chapter 2: The equations of fluid motion; 2.1. Tensor notation; 2.2. The equation of continuity; 2.3. The momentum equation; 2.3.1. General considerations; 2.3.2. Viscous stresses; 2.4. Thermodynamic quantities 

2.5. The role of vorticity2.5.1. Crocco's equation; 2.5.2. The vorticity equation; 2.5.3. The speed of sound in ideal flow; 2.6. Energy and acoustic intensity; 2.6.1. The energy equation; 2.6.2. Sound power; 2.7. Some relevant fluid dynamic concepts and methods; 2.7.1. Streamlines and vorticity; 2.7.2. Ideal flow; 2.7.3. Conformal mapping; 2.7.4. Vortex filaments and the Biot Savart law; References; Chapter 3: Linear acoustics; 3.1. The acoustic wave equation; 3.2. Plane waves and spherical waves; 3.3. Harmonic time dependence; 3.4. Sound generation by a small sphere 

3.5. Sound scattering by a small sphere3.6. Superposition and far field approximations; 3.7. Monopole, dipole, and quadrupole sources; 3.8. Acoustic intensity and sound power output; 3.9. Solution to the wave equation using Green's functions; 3.10. Frequency domain solutions and Fourier transforms; References; Chapter 4: Lighthill's acoustic analogy; 4.1. Lighthill's analogy; 4.2. Limitations of the acoustic analogy; 4.2.1. Nearly incompressible flow; 4.2.2. Uniform flow; 4.3. Curle's theorem; 4.4. Monopole, dipole, and quadrupole sources; 4.5. Tailored Green's functions 

4.6. Integral formulas for tailored Green's functions4.7. Wavenumber and Fourier transforms; References; Chapter 5: The Ffowcs Williams and Hawkings equation; 5.1. Generalized derivatives; 5.2. The Ffowcs Williams and Hawkings equation; 5.3. Moving sources; 5.4. Sources in a free stream; 5.5. Ffowcs Williams and Hawkings surfaces; 5.6. Incompressible flow estimates of acoustic source terms; References; Chapter 6: The linearized Euler equations; 6.1. Goldstein's equation; 6.2. Drift coordinates; 6.3. Rapid distortion theory; 6.4. Acoustically compact thin airfoils and the Kutta condition 

6.5. The PrantlGlauert transformationReferences; Chapter 7: Vortex sound; 7.1. Theory of vortex sound; 7.2. Sound from two line vortices in free space; 7.3. Surface forces in incompressible flow; 7.4. Aeolian tones; 7.5. Blade vortex interactions in incompressible flow; 7.6. The effect of angle of attack and blade thickness on unsteady loads; 7.6.1. The effect of angle of attack; 7.6.2. The effect of airfoil thickness; References; Chapter 8: Turbulence and stochastic processes; 8.1. The nature of turbulence; 8.2. Averaging and the expected value 
Summary 
Focusing both on the necessary mathematics and physics, this resource 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.  Edited summary from book 
Bibliography 
Includes bibliographical references and index 
Notes 
Online resource; title from PDF title page (EBSCO, viewed March 12, 2017) 
Subject 
Aeroacoustics.


Mach number.


Aerodynamic noise.


Aerodynamics  Mathematical models


SCIENCE  Acoustics & Sound.


Aerodynamics  Mathematical models.


Aeroacoustics.


Aerodynamic noise.


Mach number.

Genre/Form 
Electronic book

Form 
Electronic book

Author 
Devenport, William J., author.

LC no. 
2016962974 
ISBN 
9780128097939 

0128097930 
