Aero- and Hydro-Acoustics

Aero- and Hydro-Acoustics PDF Author: Genevieve Comte-Bellot
Publisher: Springer Science & Business Media
ISBN: 3642827586
Category : Science
Languages : en
Pages : 534

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Book Description
The Symposium "Aero-and Hydroacoustics" was held at the Ecole Centrale de Lyon, France, on 3rd - 6 July 1985, at the initiative of the International Union of Theoretical and Applied Mechanics (IUTAM) . The research topics discussed concerned the acoustics of unstable and turbulent flows and the noise generated by movable surfaces. Other subjects of interest were thermoacoustics, diffraction, and acoustic propagation through turbulence. Applications of numerical and experimental techniques to source diagnostics were discussed, as was active noise control. In Hydroacoustics the emphasis was on noise due to flow induced vibrations. There were 8 general invited lecturers and 43 other contributors, with 150 participants form 14 countries. Sufficient time was provided for discussions and social gatherings. For example, there was the opening of the high speed anechoic wind tunnel of the Centre Acoustique, and a welcome address given by the Mayor of Lyon in his historic City Hall. The organizing Committee of the Symposium wish to express their thanks to la Direction des Recherches Etudes et Techniques du Ministere des Armees (DRET), Ie Centre National de la Recherche Scientifique (CNRS), Ie Conseil General du Rhone, l'Association Universitaire de Mecanique (AUM), Ie Ministere de l'Environnement, for financial support. Le Groupement des Acousticiens de langue frangaise (GALF) helped advertise the meeting. The organizers are also indebted to the International Union of Theoretical and Applied Mechanics for providing travel subsidies to young scientists

Aero- and Hydro-Acoustics

Aero- and Hydro-Acoustics PDF Author: Genevieve Comte-Bellot
Publisher: Springer Science & Business Media
ISBN: 3642827586
Category : Science
Languages : en
Pages : 534

Get Book Here

Book Description
The Symposium "Aero-and Hydroacoustics" was held at the Ecole Centrale de Lyon, France, on 3rd - 6 July 1985, at the initiative of the International Union of Theoretical and Applied Mechanics (IUTAM) . The research topics discussed concerned the acoustics of unstable and turbulent flows and the noise generated by movable surfaces. Other subjects of interest were thermoacoustics, diffraction, and acoustic propagation through turbulence. Applications of numerical and experimental techniques to source diagnostics were discussed, as was active noise control. In Hydroacoustics the emphasis was on noise due to flow induced vibrations. There were 8 general invited lecturers and 43 other contributors, with 150 participants form 14 countries. Sufficient time was provided for discussions and social gatherings. For example, there was the opening of the high speed anechoic wind tunnel of the Centre Acoustique, and a welcome address given by the Mayor of Lyon in his historic City Hall. The organizing Committee of the Symposium wish to express their thanks to la Direction des Recherches Etudes et Techniques du Ministere des Armees (DRET), Ie Centre National de la Recherche Scientifique (CNRS), Ie Conseil General du Rhone, l'Association Universitaire de Mecanique (AUM), Ie Ministere de l'Environnement, for financial support. Le Groupement des Acousticiens de langue frangaise (GALF) helped advertise the meeting. The organizers are also indebted to the International Union of Theoretical and Applied Mechanics for providing travel subsidies to young scientists

Aero and Hydro Acoustics

Aero and Hydro Acoustics PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Aero-hydroacoustics for Ships

Aero-hydroacoustics for Ships PDF Author: William K. Blake
Publisher:
ISBN:
Category : Acoustical engineering
Languages : en
Pages : 668

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Aero- and Hydro-acoustics

Aero- and Hydro-acoustics PDF Author: Geneviève Comte-Bellot
Publisher: Springer Verlag
ISBN: 9780387163482
Category : Technology & Engineering
Languages : en
Pages : 0

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Computational Aero- and Hydro-acoustics by Space-time Conservation Element and Solution Element Method

Computational Aero- and Hydro-acoustics by Space-time Conservation Element and Solution Element Method PDF Author: Po-Hsien Lin
Publisher:
ISBN:
Category :
Languages : en
Pages : 75

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Book Description
Abstract: This thesis reports the results of my M.S. research work about applying the space-time Conservation Element and Solution Element (CESE) method to computational aero- and hydro- acoustics. I am concerned with numerical solutions of nonlinear fluid equations for wave propagation in low-speed flows in air and in water. The case simulated is flow over cylinder. For air flows, three different Reynolds numbers are considered: 89000, 46000, and 22000. Results compared favorably with previously published numerical and experimental results. For water flow over a cylinder at Re = 89000 is carried out and the generated noises are predicted.

Computational Aero- and Hydro-acoustics 1993

Computational Aero- and Hydro-acoustics 1993 PDF Author: R. R. Mankbadi
Publisher: American Society of Mechanical Engineers
ISBN:
Category : Computers
Languages : en
Pages : 154

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Book Description


ICASE/LaRC Workshop on Benchmark Problems in Computational Aeroacoustics (CAA)

ICASE/LaRC Workshop on Benchmark Problems in Computational Aeroacoustics (CAA) PDF Author: Jay C. Hardin
Publisher:
ISBN:
Category : Aerodynamic noise
Languages : en
Pages : 412

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Book Description


Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines and Propellers

Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines and Propellers PDF Author: H.M. Atassi
Publisher: Springer Science & Business Media
ISBN: 1461393418
Category : Science
Languages : en
Pages : 876

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Book Description
The first International Symposium on Unsteady Aerodynamics and Aero elasticity of Turbomachines was held in Paris in 1976, and was followed by symposia at Lausanne in 1980, Cambridge in 1984, Aachen in 1987, Bei jing in 1989, and Notre Dame in 1991. The proceedings published following these symposia have become recognized both as basic reference texts in the subject area and as useful guides to progress in the field. It is hoped that this volume, which represents the proceedings of the Sixth International Symposium on Unsteady Aerodynamics of Turbomachines, will continue that tradition. Interest in the unsteady aerodynamics, aeroacoustics, and aeroelasticity of turbomachines has been growing rapidly since the Paris symposium. This expanded interest is reflected by a significant increase in the numbers of contributed papers and symposium participants. The timeliness of the topics has always been an essential objective of these symposia. Another important objective is to promote an international exchange between scien tists and engineers from universities, government agencies, and industry on the fascinating phenomena of unsteady turbomachine flows and how they affect the aeroelastic stability of the blading system and cause the radiation of unwanted noise. This exchange acts as a catalyst for the development of new analytical and numerical models along with carefully designed ex periments to help understand the behavior of such systems and to develop predictive tools for engineering applications.

Acoustic Emission

Acoustic Emission PDF Author: Mahmut Reyhanoglu
Publisher: BoD – Books on Demand
ISBN: 1803551054
Category : Technology & Engineering
Languages : en
Pages : 110

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Book Description
Structural testing and assessment, process monitoring, and material characterization are three broad application areas of acoustic emission (AE) techniques. Quantitative and qualitative characteristics of AE waves have been studied widely in the literature. This book reviews major research developments in the application of AE in numerous engineering fields. It brings together important contributions from renowned international researchers to provide an excellent survey of new perspectives and paradigms of AE. In particular, this book presents applications of AE in cracking and damage assessment in metal beams, asphalt pavements, and composite materials as well as studying noise mitigation in wind turbines and cylindrical shells.

Aeroacoustics of Low Mach Number Flows

Aeroacoustics of Low Mach Number Flows PDF Author: Stewart Glegg
Publisher: Elsevier
ISBN: 0443218587
Category : Technology & Engineering
Languages : en
Pages : 724

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Book Description
Aeroacoustics of Low Mach Number Flows: Fundamentals, Analysis and Measurement, Second Edition provides a detailed introduction to sound radiation from subsonic flow over moving surfaces. This phenomenon is the most widespread cause of flow noise in engineering systems, including fan noise, rotor noise, wind turbine noise, boundary layer noise, airframe noise and aircraft noise. This fully updated new edition includes additional problems, illustrations and summary materials to support readers. New content covers Rapid Distortion theory (RDT), boundary layer wall pressure fluctuations, and flow induced sound at surfaces. Themes addressing non-compressible flows have also been added, offering coverage of hydroacoustic as well as aeroacoustic applications. New support materials for this edition include course outlines, problem sets, sample MATLAB codes and experimental data to be found at www.aeroacoustics.net. - Addresses, in detail, sound from rotating blades, ducted fans, airframes, boundary layers, and more - Presents theory in such a way that it can be used in computational methods and calculating sound levels - Includes coverage of different experimental approaches to this subject