Scale Model Simulation of Outdoor Sound Propagation

Scale Model Simulation of Outdoor Sound Propagation PDF Author: Martin Almgren
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Scale Model Simulation of Outdoor Sound Propagation

Scale Model Simulation of Outdoor Sound Propagation PDF Author: Martin Almgren
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Scale Model Simulation of Outdoor Sound Propagation

Scale Model Simulation of Outdoor Sound Propagation PDF Author: Martin Almgren
Publisher:
ISBN:
Category :
Languages : en
Pages : 304

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Scale Model Simulation of Outdoor Sound Propagation Under the Influence of a Sound Speed Gradient

Scale Model Simulation of Outdoor Sound Propagation Under the Influence of a Sound Speed Gradient PDF Author: Martin Almgren
Publisher:
ISBN:
Category :
Languages : en
Pages : 98

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Scale Model Simulation of Outdoor Sound Propagation Selection of Model Ground Materials

Scale Model Simulation of Outdoor Sound Propagation Selection of Model Ground Materials PDF Author: Martin Almgren
Publisher:
ISBN:
Category :
Languages : en
Pages : 76

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Scale Model Simulation of Outdoor Sound Propagation, Air and Water System Acoustics, Applied Psychoacoustics and Room Acoustics

Scale Model Simulation of Outdoor Sound Propagation, Air and Water System Acoustics, Applied Psychoacoustics and Room Acoustics PDF Author: Martin Almgren
Publisher:
ISBN:
Category :
Languages : en
Pages : 70

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Effect of the acoustic boundary layer on scale model simulation of outdoor sound propagation

Effect of the acoustic boundary layer on scale model simulation of outdoor sound propagation PDF Author: Martin Almgren
Publisher:
ISBN:
Category :
Languages : sv
Pages : 142

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Book Description


Predicting Outdoor Sound

Predicting Outdoor Sound PDF Author: Keith Attenborough
Publisher: CRC Press
ISBN: 042989483X
Category : Technology & Engineering
Languages : en
Pages : 690

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Book Description
The second edition of Predicting Outdoor Sound is an up-to-date reference on the propagation of sound close to the ground and its prediction. New content includes comparisons between predictions and data for road traffic, railway and wind turbine noise; descriptions of source characteristics in the HARMONOISE model; propagation over rough seas, parallel low walls, and lattices; outlines of numerical methods; gabion (caged stones) and sonic crystal noise barriers; meteorological effects on noise barrier performance; and the prediction requirements for auralization. The book brings together relevant theories, prediction schemes, and data, thereby providing a basis for determining what model or scheme might be applicable for any situation. It also offers a background on useful analytical approximations and the restrictions, as well as difficulties and limitations associated with engineering prediction schemes. The text should be of considerable interest to researchers in outdoor sound propagation and, more generally, it should provide a comprehensive primer on the topic for lecturers, consultants and students in acoustics and noise control.

Scale Model Simulation of Sound Propagation Considering Sound Speed Gradients and Acoustic Boundary Layers at a Rigid Surface

Scale Model Simulation of Sound Propagation Considering Sound Speed Gradients and Acoustic Boundary Layers at a Rigid Surface PDF Author: Martin Almgren
Publisher:
ISBN: 9789170322549
Category : Acoustic emission
Languages : en
Pages : 17

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Outdoor Sound Propagation Modelling in Complex Environments: Recent Developments in the Parabolic Equation Method

Outdoor Sound Propagation Modelling in Complex Environments: Recent Developments in the Parabolic Equation Method PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 17

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Book Description
In complex environments the modelling of outdoor sound propagation implies to take into account the mixed influence of ground characteristics (topography, obstacles, impedance, etc.) and atmospheric conditions (refraction and turbulence). During the last decade significant progress has been made in the modelling of sound propagation over distances ranging from hundreds meters to kilometres, and the agreement between calculated and measured fields has been greatly improved. New developments appear in the parabolic-equation method. In this paper we present a method which evaluates the propagation of an acoustic wave above uneven terrains including realistic meteorological parameters. In our approach the effects of the topography are modelled using appropriate rotated co-ordinates systems in order to treat the non-flat ground as a succession of flat domains. We also examine the influence of scale resolution on numerical simulation of long range sound propagation through the turbulent atmosphere. Currently, we generate the turbulence using a Random Fourier Modes technique, such that the turbulent fluctuation at any point in the medium (either scalar or vectorial in nature) is calculated from the sum of a chosen number of modes. Our model of outdoors sound propagation is validated both with classical numerical benchmark cases and recent outdoor experiments.

Springer Handbook of Acoustics

Springer Handbook of Acoustics PDF Author: Thomas Rossing
Publisher: Springer Science & Business Media
ISBN: 0387304460
Category : Science
Languages : en
Pages : 1179

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Book Description
This is an unparalleled modern handbook reflecting the richly interdisciplinary nature of acoustics edited by an acknowledged master in the field. The handbook reviews the most important areas of the subject, with emphasis on current research. The authors of the various chapters are all experts in their fields. Each chapter is richly illustrated with figures and tables. The latest research and applications are incorporated throughout, including computer recognition and synthesis of speech, physiological acoustics, diagnostic imaging and therapeutic applications and acoustical oceanography. An accompanying CD-ROM contains audio and video files.