Flow Noise Modeling, Measurement, and Control

Flow Noise Modeling, Measurement, and Control PDF Author:
Publisher:
ISBN:
Category : Aerodynamic noise
Languages : en
Pages : 172

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Book Description

Flow Noise Modeling, Measurement, and Control

Flow Noise Modeling, Measurement, and Control PDF Author:
Publisher:
ISBN:
Category : Aerodynamic noise
Languages : en
Pages : 172

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Book Description


FY .. Annual ILIR Report

FY .. Annual ILIR Report PDF Author: Naval Undersea Warfare Center (U.S.). In-House Laboratory Independent Research Program
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 278

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Twenty-Third Symposium on Naval Hydrodynamics

Twenty-Third Symposium on Naval Hydrodynamics PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309254671
Category : Science
Languages : en
Pages : 1024

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Book Description
"Vive la Revolution!" was the theme of the Twenty-Third Symposium on Naval Hydrodynamics held in Val de Reuil, France, from September 17-22, 2000 as more than 140 experts in ship design, construction, and operation came together to exchange naval research developments. The forum encouraged both formal and informal discussion of presented papers, and the occasion provides an opportunity for direct communication between international peers. This book includes sixty-three papers presented at the symposium which was organized jointly by the Office of Naval Research, the National Research Council (Naval Studies Board), and the Bassin d'Essais des Carènes. This book includes the ten topical areas discussed at the symposium: wave-induced motions and loads, hydrodynamics in ship design, propulsor hydrodynamics and hydroacoustics, CFD validation, viscous ship hydrodynamics, cavitation and bubbly flow, wave hydrodynamics, wake dynamics, shallow water hydrodynamics, and fluid dynamics in the naval context.

Flinovia - Flow Induced Noise and Vibration Issues and Aspects

Flinovia - Flow Induced Noise and Vibration Issues and Aspects PDF Author: Elena Ciappi
Publisher: Springer
ISBN: 331909713X
Category : Technology & Engineering
Languages : en
Pages : 364

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Book Description
Flow induced vibration and noise (FIVN) remains a critical research topic. Even after over 50 years of intensive research, accurate and cost-effective FIVN simulation and measurement techniques remain elusive. This book gathers the latest research from some of the most prominent experts in the field. It describes methods for characterizing wall pressure fluctuations, including subsonic and supersonic turbulent boundary layer flows over smooth and rough surfaces using computational methods like Large Eddy Simulation; for inferring wall pressure fluctuations using inverse techniques based on panel vibrations or holographic pressure sensor arrays; for calculating the resulting structural vibrations and radiated sound using traditional finite element methods, as well as advanced methods like Energy Finite Elements; for using scaling approaches to universally collapse flow-excited vibration and noise spectra; and for computing time histories of structural response, including alternating stresses. This book presents the proceedings of the First International Workshop on Flow Induced Noise and Vibration (FLINOVIA), which was held in Rome, Italy, in November 2013. The authors’ backgrounds represent a mix of academia, government, and industry, and several papers include applications to important problems for underwater vehicles, aerospace structures and commercial transportation. The book offers a valuable reference guide for all those working in the area of flow-induced vibration and noise.

Mechanics of Flow-Induced Sound and Vibration, Volume 2

Mechanics of Flow-Induced Sound and Vibration, Volume 2 PDF Author: William K. Blake
Publisher: Academic Press
ISBN: 0128122900
Category : Science
Languages : en
Pages : 696

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Book Description
Mechanics of Flow-Induced Sound and Vibration, Volume 2: Complex Flow-Structure Interactions, Second Edition, enables readers to fully understand flow-induced vibration and sound, unifying the disciplines of fluid dynamics, structural dynamics, vibration, acoustics, and statistics in order to classify and examine each of the leading sources of vibration and sound induced by various types of fluid motion. Starting from classical theories of aeroacoustics and hydroacoustics, a formalism of integral solutions valid for sources near boundaries is developed and then broadened to address different source types, including hydrodynamically induced cavitation and bubble noise, turbulent wall-pressure fluctuations, pipe and duct systems, lifting surface flow noise and vibration, and noise from rotating machinery. Each chapter is illustrated with comparisons of leading formulas and measured data. Combined with its companion book, Mechanics of Flow-Induced Sound and Vibration, Volume 1: General Concepts and Elementary Sources, the book covers everything an engineer needs to understand flow-induced sound and vibration. This book will be a vital source of information for postgraduate students, engineers and researchers with an interest in aerospace, ships and submarines, offshore structures, construction, and ventilation. - Presents every important topic in flow-induced sound and vibration - Covers all aspects of the topics addressed, from fundamental theory, to the analytical formulas used in practice - Provides the building blocks of computer modeling for flow-induced sound and vibration

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

Noise Sources in Turbulent Shear Flows: Fundamentals and Applications

Noise Sources in Turbulent Shear Flows: Fundamentals and Applications PDF Author: Roberto Camussi
Publisher: Springer Science & Business Media
ISBN: 3709114586
Category : Technology & Engineering
Languages : en
Pages : 453

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Book Description
The articles in this volume present the state-of-the-art in noise prediction, modeling and measurement. The articles are partially based on class notes provided during the course `Noise sources in turbulent shear flows', given at CISM on April 2011. The first part contains general concepts of aero acoustics, including vortex sound theory and acoustic analogies, in the second part particular emphasis is put into arguments of interest for engineers and relevant for aircraft design: jet noise, airfoil broadband noise, boundary layer noise (including interior noise and its control) and the concept of noise sources, their theoretical modeling and identification in turbulent lows. All these arguments are treated extensively with the inclusion of many practical examples and references to engineering applications.

Experimental Investigation of Flow-induced Cavity Resonance

Experimental Investigation of Flow-induced Cavity Resonance PDF Author: Paul Zoccola (Jr., J.)
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 200

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Book Description


Applied Mechanics Reviews

Applied Mechanics Reviews PDF Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 556

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Book Description


Acoustic Interactions with Submerged Elastic Structures

Acoustic Interactions with Submerged Elastic Structures PDF Author: Ard‚shir Guran
Publisher: World Scientific
ISBN: 9812810757
Category : Science
Languages : en
Pages : 443

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Book Description
"\berall's work in acoustic and electromagnetic scattering has evoked much interest, in the US as well as abroad, because of its possible practical applications, as well as the theoretical understanding. Many collaborators have been inspired by it, and have now contributed to this volume. The book is an excellent contribution to the literature of Acoustics and Wave Propagation. Professor Guran is to be congratulated for organizing and editing this volume." Prof. Hans A Bethe Noble Laureate Cornell University, 1996