Propagation of Sound in Porous Media Modelling Sound Absorbing Materials 2nd Edition by Jean F Allard, Noureddine Atalla ISBN 0470747331 9780470747339

Propagation of Sound in Porous Media Modelling Sound Absorbing Materials 2nd Edition by Jean F Allard, Noureddine Atalla – Ebook PDF Instant Download/Delivery: 0470747331, 9780470747339
Full download Propagation of Sound in Porous Media Modelling Sound Absorbing Materials 2nd Edition after payment

Product details:

ISBN 10: 0470747331 
ISBN 13: 9780470747339
Author: Jean F Allard, Noureddine Atalla

“The first edition of this book is considered the bible of this topic… Suffice it to say that there is no other published treatise that approaches the depth of treatment offered by this book. The coverage is the state of the published art, while the added contents cover the new known developments in the field.” Haisam Osman; Technology Development Manager, United Launch Alliance This long-awaited second edition of a respected text from world leaders in the field of acoustic materials covers the state of the art with a depth of treatment unrivalled elsewhere. Allard and Atalla employ a logical and progressive approach that leads to a thorough understanding of porous material modelling. The first edition of Propagation of Sound in Porous Media introduced the basic theory of acoustics and the related techniques. Research and development in sound absorption has however progressed significantly since the first edition, and the models and methods described, at the time highly technical and specialized, have since become main stream. In this second edition, several original topics have been revisited and practical prediction methods and industrial applications have been added that increase the breadth of its appeal to both academics and practising engineers. New chapters have also been added on numerical modeling in both low (finite element) and high frequency (Transfer Matrix Method). Collating ‘must-have’ information for engineers working in sound and vibration, Propagation of Sound in Porous Media, 2nd edition offers an indisputable reference to a diverse audience; including graduate students and academics in mechanical & civil engineering, acoustics and noise control, as well as practising mechanical, chemical and materials engineers in the automotive, rail, aerospace, building and civil industries.

Propagation of Sound in Porous Media Modelling Sound Absorbing Materials 2nd Table of contents:

Part I: Basic Physical Principles

• Chapter 1: Introduction

  • Overview of sound absorption.

  • Historical context of porous materials in acoustics.

  • Basic concepts of sound waves and propagation.

  • Outline of the book’s structure and approach.

• Chapter 2: Viscous and Thermal Effects in Fluids

  • Fluid dynamics basics.

  • Viscous losses at boundaries.

  • Thermal exchange between fluid and solid (isothermal vs. adiabatic processes).

  • Complex density and compressibility concepts.

• Chapter 3: The Solid Phase

  • Properties of solid frames in porous media.

  • Elasticity and viscoelasticity.

  • Wave propagation in solids.

  • Interaction between solid and fluid.

Part II: Models for Rigid-Framed Porous Materials

• Chapter 4: Historical Models for Rigid Porous Materials

  • Rayleigh’s and Zwikker & Kosten’s theories.

  • Phenomenological models (e.g., Delany & Bazley, Miki, Attenborough).

  • Limitations of empirical models.

• Chapter 5: The Johnson-Champoux-Allard (JCA) Model

  • Derivation of the JCA model.

  • Key parameters: porosity, flow resistivity, tortuosity, viscous characteristic length, thermal characteristic length.

  • Physical interpretation of parameters.

  • Effective fluid properties (complex density and bulk modulus).

• Chapter 6: Extension of the JCA Model and Related Theories

  • Extensions for higher frequencies.

  • Comparison with other micro-macro models.

  • Models for specific porous structures (e.g., fibrous, granular).

Part III: Models for Poroelastic Materials

• Chapter 7: The Biot Theory of Poroelasticity

  • Introduction to Biot’s theory for deformable porous media.

  • Equations of motion for fluid and solid phases.

  • Three types of waves in poroelastic materials (fast P, slow P, shear).

  • Parameters of Biot’s model and their relation to JCA parameters.

• Chapter 8: Numerical Implementation and Solving Biot’s Equations

  • Finite Element Method (FEM) and Transfer Matrix Method (TMM) for poroelastic materials.

  • Boundary conditions for poroelastic media.

  • Computational aspects.

Part IV: Sound Absorption Mechanisms and Applications

• Chapter 9: Surface Impedance and Absorption Coefficient

  • Definitions of surface impedance and absorption coefficient.

  • Measurement techniques for sound absorption.

  • Influence of air gaps and backing conditions.

• Chapter 10: Multilayered Structures and Perforated Plates

  • Modelling sound absorption of layered systems (e.g., porous layer + air gap + rigid wall).

  • Sound absorption of perforated panels and Helmholtz resonators.

  • Combining porous materials with resonant structures.

• Chapter 11: Sound Propagation in Ducts and Enclosures

  • Sound propagation in ducts lined with porous materials.

  • Noise reduction in ventilation systems.

  • Reverberation time and room acoustics.

• Chapter 12: Characterization of Porous Materials

  • Experimental methods for measuring JCA and Biot parameters (e.g., static flow resistivity, tortuosity, characteristic lengths, elastic moduli).

  • Inverse characterization methods.

• Chapter 13: Advanced Topics and Future Directions

  • Non-acoustical properties of porous materials.

  • Novel porous materials and structures (e.g., foams, natural fibers).

  • Computational fluid dynamics (CFD) for porous media.

  • Coupled phenomena (e.g., thermoacoustics).

People also search for Propagation of Sound in Porous Media Modelling Sound Absorbing Materials 2nd:

propagation of sound in porous media modelling
    
what is the medium of propagation of sound
    
what is propagation of sound
    
hydraulic properties of porous media
    
sound propagation in porous media

 

Tags: Jean F Allard, Noureddine Atalla, Propagation, Porous Media Modelling