Broadband Fan Noise Generated by Small Scale Turbulence

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722960742
Total Pages : 106 pages
Book Rating : 4.9/5 (67 download)

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Book Synopsis Broadband Fan Noise Generated by Small Scale Turbulence by : National Aeronautics and Space Administration (NASA)

Download or read book Broadband Fan Noise Generated by Small Scale Turbulence written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the development of prediction methods for broadband fan noise from aircraft engines. First, experimental evidence of the most important source mechanisms is reviewed. It is found that there are a number of competing source mechanism involved and that there is no single dominant source to which noise control procedures can be applied. Theoretical models are then developed for: (1) ducted rotors and stator vanes interacting with duct wall boundary layers, (2) ducted rotor self noise, and (3) stator vanes operating in the wakes of rotors. All the turbulence parameters required for these models are based on measured quantities. Finally the theoretical models are used to predict measured fan noise levels with some success. Glegg, Stewart A. L. Langley Research Center FAN BLADES; NOISE (SOUND); TURBULENCE; WAKES; NOISE REDUCTION; NOISE INTENSITY; AERODYNAMIC NOISE; MATHEMATICAL MODELS; WALLS; VANES; ROTOR AERODYNAMICS; PREDICTION ANALYSIS TECHNIQUES; DUCTS; BOUNDARY LAYERS; AIRCRAFT ENGINES...

Mechanics of Flow-Induced Sound and Vibration, Volume 2

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Publisher : Academic Press
ISBN 13 : 0128122900
Total Pages : 696 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Mechanics of Flow-Induced Sound and Vibration, Volume 2 by : William K. Blake

Download or read book Mechanics of Flow-Induced Sound and Vibration, Volume 2 written by William K. Blake and published by Academic Press. This book was released on 2017-08-14 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

NASA Technical Paper

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Publisher :
ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis NASA Technical Paper by :

Download or read book NASA Technical Paper written by and published by . This book was released on 1977 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Paper

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Publisher :
ISBN 13 :
Total Pages : 934 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis NASA Technical Paper by : United States. National Aeronautics and Space Administration

Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1977 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Acoustic Performance of Two 1.83-meter-diameter Fans Designed for a Wind-tunnel Drive System

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Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Acoustic Performance of Two 1.83-meter-diameter Fans Designed for a Wind-tunnel Drive System by : Paul R. Soderman

Download or read book Acoustic Performance of Two 1.83-meter-diameter Fans Designed for a Wind-tunnel Drive System written by Paul R. Soderman and published by . This book was released on 1977 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Monthly Catalog of United States Government Publications

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Publisher :
ISBN 13 :
Total Pages : 1388 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Monthly Catalog of United States Government Publications by :

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1971 with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Aeroacoustics of Flight Vehicles

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Publisher :
ISBN 13 :
Total Pages : 620 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Aeroacoustics of Flight Vehicles by : Harvey H. Hubbard

Download or read book Aeroacoustics of Flight Vehicles written by Harvey H. Hubbard and published by . This book was released on 1991 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advanced Applications in Acoustics, Noise and Vibration

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Publisher : CRC Press
ISBN 13 : 1482289083
Total Pages : 656 pages
Book Rating : 4.4/5 (822 download)

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Book Synopsis Advanced Applications in Acoustics, Noise and Vibration by : Frank Fahy

Download or read book Advanced Applications in Acoustics, Noise and Vibration written by Frank Fahy and published by CRC Press. This book was released on 2018-09-03 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Applications in Acoustics, Noise and Vibration provides comprehensive and up-to-date overviews of knowledge, applications and research activities in a range of topics that are of current interest in the practice of engineering acoustics and vibration technology. The thirteen chapters are grouped into four parts: signal processing, acoustic modelling, environmental and industrial acoustics, and vibration. Following on from its companion volume Fundamentals of Noise and Vibration this book is based partly on material covered in a selection of elective modules in the second semester of the Masters programme in 'Sound and Vibration Studies' of the Institute of Sound and Vibration Research at the University of Southampton, UK and partly on material presented in the annual ISVR short course 'Advanced Course in Acoustics, Noise and Vibration'.

NASA Reference Publication

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Publisher :
ISBN 13 :
Total Pages : 628 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis NASA Reference Publication by :

Download or read book NASA Reference Publication written by and published by . This book was released on 1977 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Design Procedure for Fan Inflow Control Structures

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Publisher :
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Design Procedure for Fan Inflow Control Structures by :

Download or read book A Design Procedure for Fan Inflow Control Structures written by and published by . This book was released on 1980 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Industrial Combustion Testing

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Publisher : CRC Press
ISBN 13 : 1420085298
Total Pages : 777 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Industrial Combustion Testing by : Jr., Charles E. Baukal

Download or read book Industrial Combustion Testing written by Jr., Charles E. Baukal and published by CRC Press. This book was released on 2010-07-29 with total page 777 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until now, anyone conducting industrial combustion tests had to either rely on old methods, go scurrying through the literature to find proven applicable methodologies, or hire top-shelf consultants such as those that work for cutting-edge companies like John Zink. Manufacturers can no longer take industrial combustion for granted. Air and noise po

A Method to Further Reduce the Perceived Noise of Low Tip Speed Fans

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Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Method to Further Reduce the Perceived Noise of Low Tip Speed Fans by :

Download or read book A Method to Further Reduce the Perceived Noise of Low Tip Speed Fans written by and published by . This book was released on 2000 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Noise and Noise Control

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Publisher : CRC Press
ISBN 13 : 1351083449
Total Pages : 306 pages
Book Rating : 4.3/5 (51 download)

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Book Synopsis Noise and Noise Control by : Malcolm J. Crocker

Download or read book Noise and Noise Control written by Malcolm J. Crocker and published by CRC Press. This book was released on 2018-01-18 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written more for the practitioner than the casual reader. Although a high mathematical level is not needed, for much of the material some engineering knowledge is desirable. Noise control is not easy and there are no magic answers to problems. Careful study and patience are required to produce proficiency in the field of noise control.

Air Transport and Operations

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Publisher : IOS Press
ISBN 13 : 1614991189
Total Pages : 568 pages
Book Rating : 4.6/5 (149 download)

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Book Synopsis Air Transport and Operations by : R. Curran

Download or read book Air Transport and Operations written by R. Curran and published by IOS Press. This book was released on 2012 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the joint conference held in Delft, the Netherlands inJune 2012, incorporating the 3rd International Air Transport Operations Symposium ATOS, the 3rd Association of Scientific Development in Air Traffic Management in Europe ASDASeminar, the 6th International Meeting for Aviation Products Support Processes IMAPP and the 2012Complex World Seminar. The book includes the majority of academic papers presented at the conference, and provides a wide overview of the issues currently of importance in the world of air transport.pIOS Press is an international science, technical and medical publisher

Flow Noise

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Publisher : Springer Nature
ISBN 13 : 9811924848
Total Pages : 193 pages
Book Rating : 4.8/5 (119 download)

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Book Synopsis Flow Noise by : Con Doolan

Download or read book Flow Noise written by Con Doolan and published by Springer Nature. This book was released on 2022-05-10 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the importance of sound produced by fluid flow or flow-induced noise. Noise created by unsteady flow creates high levels of environmental noise pollution, a known public health problem, and can compromise the acoustic qualities of marine vessels. There is a seemingly ever-growing list of modern technology that created flow-induced noise which includes aircraft, wind turbines, submarines, drones, high-speed rail, and cooling fans. More scientists and engineers are required to incorporate the effects of flow-induced noise in their work. This book also provides a comprehensive introduction to the theory underpinning the understanding of flow-induced noise.

Numerical and Experimental Studies of Flow Characteristics in Centrifugal Fans

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Publisher :
ISBN 13 :
Total Pages : 598 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Numerical and Experimental Studies of Flow Characteristics in Centrifugal Fans by : Lunxi Xia

Download or read book Numerical and Experimental Studies of Flow Characteristics in Centrifugal Fans written by Lunxi Xia and published by . This book was released on 1992 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:

15th AIAA Aeroacoustics Conference: 93-4401 - 93-4450

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Publisher :
ISBN 13 :
Total Pages : 536 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis 15th AIAA Aeroacoustics Conference: 93-4401 - 93-4450 by :

Download or read book 15th AIAA Aeroacoustics Conference: 93-4401 - 93-4450 written by and published by . This book was released on 1993 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: