Download or read book Acoustic Waves in Saturated Porous Media written by Krzysztof Wilmański and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustics of Porous Media written by Thierry Bourbié and published by Editions TECHNIP. This book was released on 1987 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustic Wave Interaction with Planar Interfaces in Fluid Saturated Porous Media written by Qiang Xue and published by . This book was released on 1990 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational and Experimental Studies of Acoustic Waves written by Mahmut Reyhanoglu and published by BoD – Books on Demand. This book was released on 2018-01-04 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent studies of acoustic wave propagation through different media including the atmosphere, Earth's subsurface, complex dusty plasmas, porous materials, and flexible structures. Mathematical models of the underlying physical phenomena are introduced and studied in detail. With its seven chapters, the book brings together important contributions from renowned international researchers to provide an excellent survey of recent computational and experimental studies of acoustic waves. The first section consists of four chapters that focus on computational studies, while the next section is composed of three chapters that center on experimental studies.
Download or read book Propagation of Sound in Porous Media written by J.F. Allard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has grown out of the research activities of the author in the fields of sound propagation in porous media and modelling of acoustic materials. It is assumed that the reader has a background of advanced calculus, including an introduction to differential equations, complex variables and matrix algebra. A prior exposure to theory of elasticity would be advantageous. Chapters 1-3 deal with sound propagation of plane waves in solids and fluids, and the topics of acoustic impedance and reflection coefficient are given a large emphasis. The topic of flow resistivity is presented in Chapter 2. Chapter 4 deals with sound propagation in porous materials having cylindrical pores. The topics of effective density, and of tortuosity, are presented. The thermal exchanges between the frame and the fluid, and the behaviour of the bulk modulus of the fluid, are described in this simple context. Chapter 5 is concerned with sound propagation in other porous materials, and the recent notions of characteristic dimensions, which describe thermal exchanges and the viscous forces at high frequencies, are introduced. In Chapter 6, the case of porous media having an elastic frame is considered in the context of Biot theory, where new topics described in Chapter 5 have been included.
Download or read book Acoustic Waves in Periodic Structures Metamaterials and Porous Media written by Noé Jiménez and published by Springer Nature. This book was released on 2021-11-03 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book delivers a comprehensive and up-to-date treatment of practical applications of metamaterials, structured media, and conventional porous materials. With increasing levels of urbanization, a growing demand for motorized transport, and inefficient urban planning, environmental noise exposure is rapidly becoming a pressing societal and health concern. Phononic and sonic crystals, acoustic metamaterials, and metasurfaces can revolutionize noise and vibration control and, in many cases, replace traditional porous materials for these applications. In this collection of contributed chapters, a group of international researchers reviews the essentials of acoustic wave propagation in metamaterials and porous absorbers with viscothermal losses, as well as the most recent advances in the design of acoustic metamaterial absorbers. The book features a detailed theoretical introduction describing commonly used modelling techniques such as plane wave expansion, multiple scattering theory, and the transfer matrix method. The following chapters give a detailed consideration of acoustic wave propagation in viscothermal fluids and porous media, and the extension of this theory to non-local models for fluid saturated metamaterials, along with a description of the relevant numerical methods. Finally, the book reviews a range of practical industrial applications, making it especially attractive as a white book targeted at the building, automotive, and aeronautic industries.
Download or read book Multi Component Acoustic Characterization of Porous Media written by Karel N. van Dalen and published by Springer Science & Business Media. This book was released on 2013-01-11 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The feasibility to extract porous medium parameters from acoustic recordings is investigated. The thesis gives an excellent discussion of our basic understanding of different wave modes, using a full-waveform and multi-component approach. Focus lies on the dependency on porosity and permeability where especially the latter is difficult to estimate. In this thesis, this sensitivity is shown for interface-wave and reflected-wave modes. For each of the pseudo-Rayleigh and pseudo-Stoneley interface waves unique estimates for permeability and porosity can be obtained when impedance and attenuation are combined. The pseudo-Stoneley wave is most sensitive to permeability: both the impedance and the attenuation are controlled by the fluid flow. Also from reflected-wave modes unique estimates for permeability and porosity can be obtained when the reflection coefficients of different reflected modes are combined. In this case the sensitivity to permeability is caused by subsurface heterogeneities generating mesoscopic fluid flow at seismic frequencies. The results of this thesis suggest that estimation of in-situ permeability is feasible, provided detection is carried out with multi-component measurements. The results of this thesis argely affect geotechnical and reservoir engineering practices.
Download or read book Note on Weak Discontinuity Waves in Linear Poroelastic Materials written by Krzysztof Wilmański and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory of Linear Acoustic Waves in a Fluid saturated Porous Solid written by Sijtze M. de Vries and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods of the Physics of Porous Media written by and published by Academic Press. This book was released on 1999-07-09 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 25 years, the field of VUV physics has undergone significant developments as new powerful spectroscopic tools, VUV lasers, and optical components have become available. This volume is aimed at experimentalists who are in need of choosing the best type of modern instrumentation in this applied field. In particular, it contains a detailed chapter on laboratory sources. This volume provides an up-to-date description of state-of-the-art equipment and techniques, and a broad reference bibliography. It treats phenomena from the standpoint of an experimental physicist, whereby such topics as imaging techniques (NMR, X-ray, ultrasonic, etc.) computer modeling, eletro-kinetic phenomena, diffusion, non-linear wave propagation surface adsorption/desorption, convective mixing, and fracture are specifically addressed.
Download or read book Lattice Models in Porous Media Studies written by Aliaksei Pazdniakou and published by . This book was released on 2012 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis adresses the study of acoustic waves and multiphase flows in porous media. For the simulation of fluid flows, the lattice Boltzmann method is selected. The method is used for simulation of multiphase flows as well as for acoustic waves in a fluid. The method represents an alternative approach to the description of the fluid dynamics based on the kinetic theory of gases. In order to simulate acoustic waves in an elastic solid, the LSM (Lattice Spring model) is selected. In the framework of the LSM, the medium is replaced by a cubic lattice. The nodes of the lattice are connected by springs of two types. The obtained dynamic equations correspond to those of the theory of elasticity. The method is applied to calculate the compressional and shear wave velocities in reconstructed porous media for various frequencies and porosity values. The two models (LBM and LSM) are coupled by the boundary conditions in order to study acoustic waves in saturated porous media. Two principal approaches exist to simulate acoustic waves in saturated porous media using our coupled (LBM+LSM) model. The first is based on the homogenization theory and the second on the real time simulation of acoustic waves. The two methods are applied for calculation of the acoustic waves velocities in saturated reconstructed porous media. The results are systematically analysed. The codes are parallelized by using OpenMP in order to reduce significantly the program run time.
Download or read book Acoustic Waves in Boreholes written by Frederick L. Paillet and published by CRC Press. This book was released on 2023-07-14 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introducing the first, self-contained reference on acoustic waveform logging Acoustic measurements in boreholes were first made as a specialized logging technique in geological exploration, but recent advances have greatly expanded the potential applications of this technique. Acoustic Waves in Boreholes provides a thorough review of the theory and interpretation techniques needed to realize these applications, emphasizing the role of guided modes and critically refracted waves in determining the characteristics of recorded waveforms. Topics covered in this comprehensive volume include the seismic properties of rocks; propagation of axisymmetric waves along fluid-filled boreholes in isotropic rocks; and symmetric and nonsymmetric sources in isotropic, transversely isotropic, and porous, permeable formations in open and cased boreholes. Each chapter includes the theory of synthetic microseismogram computation, interpretation and data inversion techniques illustrated using computed seismograms, and case histories using experimental data. Appendices providing the mathematical formulation needed to compute microseismograms, with a single consistent notation used throughout, are also included in appropriate chapters. The wide range of geomechanical properties covered in this book will interest exploration geophysicists, reservoir engineers, civil engineers, geologists, and soil scientists.
Download or read book Nonlinear Acoustic Waves in Fluid Saturated Porous Rocks Poro Acoustoelasticity Theory written by Jing Ba and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Acoustic Waves in Fluid-Saturated Porous Rocks - Poro-Acoustoelasticity Theory.
Download or read book An Experimental Investigation of Acoustic Propagation in Saturated Sands with Variable Fluid Properties written by and published by . This book was released on 1985 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Biot-Stoll theory describes the propagation of acoustic waves in a saturated, unconsolidated porous medium. The expressions for the attenuation and phase velocity derived from this theory depend explicitly on the viscosity, density, and bulk modulus of the pore fluid. An experiment has been designed to determine the dependence of attenuation and phase velocity on these properties of the pore fluid. The phase velocity and attenuation of compressional waves were measured using a mixture of water and glycerine as the interstitial fluid. The theoretical background is reviewed and the experimental procedure is discussed in detail. The results, along with comparisons with the Biot-Stoll theory, are then presented. The choices of the theoretical parameters are discussed and their relation to the fit of the theory to the data. The Biot- Stoll theory is shown to adequately describe the effects of the fluid properties on acoustic wave propagation in saturated sediments, at least for compressional waves of the first type. Keywords: Compressional velocity; Compressional attenuation; Biot theory; Viscosity dependence.
Download or read book Advances in Porous Media written by M.Y. Corapcioglu and published by Elsevier. This book was released on 1996-12-06 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Porous Media, Volume 3 presents in-depth review papers that give a comprehensive coverage of the field of transport in porous media. This is the third volume in the series which treats transport phenomena in porous media as an interdisciplinary topic. The objective of each chapter is to review the work done on a specific topic including theoretical, numerical as well as experimental studies. All contributors are from a variety of backgrounds, such as civil and environmental engineering, earth and environmental sciences. The articles are aimed at scientists and engineers from various fields who are concerned with the fundamentals and applications of processes in porous media. Advances in Porous Media, Volume 3 is a valuable source of information for both researchers in the field and those working in other related disciplines.
Download or read book Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices written by Marco G. Beghi and published by BoD – Books on Demand. This book was released on 2013-08-28 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acoustics is a mature field which enjoys a never ending youth. New developments are induced by either the search for a better understanding, or by technological innovations. Micro-fabrication techniques introduced a whole new class of microdevices, which exploit acoustic waves for various tasks, and in particular for information processing and for sensing purposes. Performance improvements are achievable by better modelling tools, able to deal with more complex configurations, and by more refined techniques of fabrication and of integration in technological systems, like wireless communications. Several chapters of this book deal with modelling and fabrication techniques for microdevices, including unconventional phenomena and configurations. But this is far from exhausting the research lines in acoustics. Theoretical analyses and modelling techniques are presented, for phenomena ranging from the detection of cracks to the acoustics of the oceans. Measurement methods are also discussed, which probe by acoustic waves the properties of widely different systems.
Download or read book Acoustic Waves Attenuation and Velocity Dispersion in Fluid filled Porous Media written by Mamadou Sanou Diallo and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
