Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 400

Get Book Here

Book Description

Author: J.F. Allard
Publisher: Springer Science & Business Media
ISBN: 9401118663
Category : Technology & Engineering
Languages : en
Pages : 296

Get Book Here

Book Description
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.

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456

Get Book Here

Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 974

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 538

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 908

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 470

Get Book Here

Book Description

Author:
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 2264

Get Book Here

Book Description
Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 706

Get Book Here

Book Description

Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1080

Get Book Here

Book Description