Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Numerical Solutions For Acoustic Rayleigh Wave Scattering In Discontinous Media full books in PDF, epub, and Kindle. Read online Numerical Solutions For Acoustic Rayleigh Wave Scattering In Discontinous Media ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Mohan Munasinghe
Publisher :
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.:/5 (615 download)
Download or read book Numerical Solutions for Acoustic Rayleigh Wave Scattering in Discontinous Media written by Mohan Munasinghe and published by . This book was released on 1973 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zdeněk Novák (Writer on industrial calculations)
Publisher :
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.:/5 (89 download)
Download or read book Ultrasonics International 1973 written by Zdeněk Novák (Writer on industrial calculations) and published by . This book was released on 1973 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 788 pages
Book Rating : 4.3/5 (91 download)
Download or read book Geophysical Journal of the Royal Astronomical Society written by and published by . This book was released on 1979 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 11 and 13 includes the Proceedings of the 2nd, 3rd, International Symposium on Geophysical Theory and Computers, Rehovoth, Israel, etc., 1965-66.
Author :
Publisher :
ISBN 13 :
Total Pages : 2454 pages
Book Rating : 4.1/5 (874 download)
Download or read book IEEE Ultrasonic Symposium Proceedings written by and published by . This book was released on 1979 with total page 2454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shelvean Kapita
Publisher :
ISBN 13 : 9781369351200
Total Pages : 134 pages
Book Rating : 4.3/5 (512 download)
Download or read book Plane Wave Discontinuous Galerkin Methods for Acoustic Scattering written by Shelvean Kapita and published by . This book was released on 2016 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: We apply the Plane Wave Discontinuous Galerkin (PWDG) method to study the direct scattering of acoustic waves from impenetrable obstacles. In the first part of the thesis we consider the full exterior scattering problem with smooth boundaries. This problem is modeled by the Helmholtz equation in the unbounded domain exterior to the scatterer. To compute the scattered field, an artificial boundary is introduced to reduce the infinite domain to a finite computational domain. We then apply Dirichlet-to-Neumann (DtN) and Neumann-to-Dirichlet (NtD) boundary conditions on a circular artificial boundary. By using asymptotic properties of Hankel functions, we are able to prove wavenumber explicit L2-norm error estimates for the DtN-PWDG method on quasi-uniform meshes. Numerical experiments indicate that the accuracy of the PWDG method for the scattering problem is improved by the use of DtN and NtD boundary conditions. The second part of the thesis concerns acoustic scattering from domains with corners. In such domains, quasi-uniform meshes are not efficient so we derive error indicators to drive the selective refinement of the mesh in an adaptive algorithm. We prove a posteriori L2-norm error estimates for the Helmholtz equation with impedance boundary conditions on the artificial boundary. Numerical results demonstrate the efficiency of the proposed indicators. This adaptive strategy is compatible with the DtN and NtD truncation of the infinite domain problem and the combination would significantly improve the accuracy and reliability of PWDG simulations.
Author : J. J. do Rêgo Silva
Publisher : Computational Mechanics
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.3/5 (91 download)
Download or read book Acoustic and Elastic Wave Scattering Using Boundary Elements written by J. J. do Rêgo Silva and published by Computational Mechanics. This book was released on 1994 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 676 pages
Book Rating : 4.3/5 (91 download)
Download or read book Canadiana written by and published by . This book was released on 1977 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John De Klerk
Publisher :
ISBN 13 :
Total Pages : 712 pages
Book Rating : 4.:/5 (318 download)
Download or read book 1975 Ultrasonics Symposium Proceedings written by John De Klerk and published by . This book was released on 1975 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dane Scott Grundvig
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)
Download or read book High Order Numerical Methods for Problems in Wave Scattering written by Dane Scott Grundvig and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arbitrary high order numerical methods for time-harmonic acoustic scattering problems originally defined on unbounded domains are constructed. This is done by coupling recently developed high order local absorbing boundary conditions (ABCs) with finite difference methods for the Helmholtz equation. These ABCs are based on exact representations of the outgoing waves by means of farfield expansions. The finite difference methods, which are constructed from a deferred-correction (DC) technique, approximate the Helmholtz equation and the ABCs to any desired order. As a result, high order numerical methods with an overall order of convergence equal to the order of the DC schemes are obtained. A detailed construction of these DC finite difference schemes is presented. Details and results from an extension to heterogeneous media are also included. Additionally, a rigorous proof of the consistency of the DC schemes with the Helmholtz equation and the ABCs in polar coordinates is also given. The results of several numerical experiments corroborate the high order convergence of the proposed method. A novel local high order ABC for elastic waves based on farfield expansions is constructed and preliminary results applying it to elastic scattering problems are presented.
Author : J. Miklowitz
Publisher : Elsevier
ISBN 13 : 0080984045
Total Pages : 635 pages
Book Rating : 4.0/5 (89 download)
Download or read book The Theory of Elastic Waves and Waveguides written by J. Miklowitz and published by Elsevier. This book was released on 2012-12-02 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this book is to give the reader a basic understanding of waves and their propagation in a linear elastic continuum. The studies of elastodynamic theory and its application to fundamental value problems should prepare the reader to tackle many physical problems of general interest in engineering and geophysics, and of particular interest in mechanics and seismology.
Author : Ricardo Weder
Publisher : Springer
ISBN 13 : 9781461244318
Total Pages : 190 pages
Book Rating : 4.2/5 (443 download)
Download or read book Spectral and Scattering Theory for Wave Propagation in Perturbed Stratified Media written by Ricardo Weder and published by Springer. This book was released on 2012-07-10 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The propagation of acoustic and electromagnetic waves in stratified media is a subject that has profound implications in many areas of applied physics and in engineering, just to mention a few, in ocean acoustics, integrated optics, and wave guides. See for example Tolstoy and Clay 1966, Marcuse 1974, and Brekhovskikh 1980. As is well known, stratified media, that is to say media whose physical properties depend on a single coordinate, can produce guided waves that propagate in directions orthogonal to that of stratification, in addition to the free waves that propagate as in homogeneous media. When the stratified media are perturbed, that is to say when locally the physical properties of the media depend upon all of the coordinates, the free and guided waves are no longer solutions to the appropriate wave equations, and this leads to a rich pattern of wave propagation that involves the scattering of the free and guided waves among each other, and with the perturbation. These phenomena have many implications in applied physics and engineering, such as in the transmission and reflexion of guided waves by the perturbation, interference between guided waves, and energy losses in open wave guides due to radiation. The subject matter of this monograph is the study of these phenomena.
Author : National Library of Canada
Publisher :
ISBN 13 :
Total Pages : 720 pages
Book Rating : 4.3/5 (91 download)
Download or read book Canadian Theses written by National Library of Canada and published by . This book was released on 1980 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 576 pages
Book Rating : 4.3/5 (91 download)
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1976 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Randall L. Barbour
Publisher : SPIE-International Society for Optical Engineering
ISBN 13 :
Total Pages : 412 pages
Book Rating : 4.3/5 (91 download)
Download or read book Experimental and Numerical Methods for Solving Ill-posed Inverse Problems written by Randall L. Barbour and published by SPIE-International Society for Optical Engineering. This book was released on 1995 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald Thompson
Publisher : Springer Science & Business Media
ISBN 13 : 1468411942
Total Pages : 670 pages
Book Rating : 4.4/5 (684 download)
Download or read book Review of Progress in Quantitative Nondestructive Evaluation written by Donald Thompson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Proceedings contains the edited papers presented at the annual Review of Progress in Quantitative NDE held at the University of California, Santa Cruz, Aug. 7-12, 1983. In it, papers have been arranged topically by chapters and subsections rather than by order of presentation at the Review. The editors believe that this format is preferable as a reference volume. Thus, the Proceedings contains nine chapters and subsections which provide broad coverage of topics of current interest in NDE research and development. The Review was sponsored by the Center for Advanced NDE, Ames Laboratory of the U. S. Department of Energy, in cooperation with the Office of Basic Energy Sciences, USDOE, the Defense Advanced Research Projects Agency, the Materials Laboratory of the Air Force Wright Aeronautical Laboratories, and the Naval Sea Systems Command. Approximately 275 attendees representing various government agencies, industry, and academia participated in the technical presentations, poster sessions, and discussions. This Review, possibly the most comprehensive annual symposium in NDE, emphasizes both basic research and early engineering applications; it provides a valuable forum for the transfer of technical information. Para graphs given below provide a brief summary of the contents of the Proceedings. Chapter 1 consists of four papers that discuss elements of NDE Reliability and contains the keynote paper given by Dr. J. M. Coffey of the NDT Applications Centre, Central Electricity Generating Board, Manchester, England. In his paper, Dr.
Author : Michael Boone Muhlestein
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (122 download)
Download or read book Analytical and Numerical Investigation of Scattering From Bianisotropic Acoustic Media written by Michael Boone Muhlestein and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Scattering from fluid domains with dissimilar material properties is of foundational importance to many application areas in acoustics and elastic wave propagation. For example, biomedical ultrasound and sonar both make use of acoustic field scattering for localization, imaging, and identification of objects. The theory of acoustic scattering from fluid and elastic materials is well established and has been validated with numerical and physical experiments. Recent work in acoustic and elastic meta-materials has shown that materials with subwavelength asymmetry have a macroscopic response characterized by a scalar bulk modulus, a tensorial mass density, and a vector that couples the pressure-strain relationship with the momentum density-particle velocity relationship. This type of constitutive behavior is the acoustic analogue of bianisotropy in electromagnetism and has come to be known as Willis coupling in acknowledgement of the first description of this material response by J.R. Willis [Willis, Wave Motion 3, pp. 111 (1981)]. We present a theoretical description of acoustic scattering of a plane wave incident upon a cylinder exhibiting weak Willis coupling using a perturbation approach. The scattered field depends upon the orientation of the Willis coupling vector and is therefore anisotropic despite the symmetry of the geometry. The analytical model is validated through comparison with a finite element-based numerical experiment where the bianisotropic material response is introduced using a weak formulation of the constitutive equations.
Author :
Publisher :
ISBN 13 :
Total Pages : 528 pages
Book Rating : 4.:/5 (26 download)
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1973 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
