Jet Flow/sound Interactions in a Ducted Environment PDF Download
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Author: K. K. Ahuja
Publisher:
ISBN:
Category : Jet nozzles
Languages : en
Pages :
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Book Description
Author: K. K. Ahuja
Publisher:
ISBN:
Category : Jet nozzles
Languages : en
Pages :
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 36
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Book Description
Author: Erkan Dokumacı
Publisher: Cambridge University Press
ISBN: 1108899625
Category : Technology & Engineering
Languages : en
Pages : 608
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Book Description
foundations of duct acoustics to the acoustic design of duct systems, through practical modeling, optimization and measurement techniques. Discover in-depth analyses of one- and three-dimensional models of sound generation, propagation and radiation, as techniques for assembling acoustic models of duct systems from simpler components are described. Identify the weaknesses of mathematical models in use and improve them by measurement when needed. Cope with challenges in acoustic design, and improve understanding of the underlying physics, by using the tools described. An essential reference for engineers and researchers who work on the acoustics of fluid machinery ductworks.
Author:
Publisher:
ISBN:
Category : Aeronautics, Commercial
Languages : en
Pages : 338
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Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 540
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 492
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Book Description
Author: United States. Office of Noise Abatement
Publisher:
ISBN:
Category : Aerodynamic noise
Languages : en
Pages : 88
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Author: P. A. Mertens
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
The sound propagation in moving air with locally varying flow velocity is investigated by means of shock waves from a spark discharge. To accomplish this, the wave fronts were photographed with a schlieren optics in a flow duct with a large flow boundary layer thickness. Results of these experiments agree with the theories of geometrical acoustics and can be incorporated into the design of ducts having air flow and airborne sound. Also investigated were properties of porous absorbers in the presence of an air flow. Results show a penetration of the absorber by the air flow yields a change of the flow resistance compared with still air. The acoustic flow resistance and the differential static flow resistance are experimentally found to have the same value. Moreover, it is proved that turbulent motions along the surface of the absorber do not affect the flow resistance appreciably. (Author).
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 602
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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: United States. Office of Noise Abatement
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 84
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Book Description
