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Studies Of The Mechanism For The Flow Induced Cavity Resonance
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Book Synopsis Studies of the Mechanism for the Flow-induced Cavity Resonance by : M. C. Harrington
Download or read book Studies of the Mechanism for the Flow-induced Cavity Resonance written by M. C. Harrington and published by . This book was released on 1960 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigations of the excitation of cavity resonance by air flow were extended. Oscillations induced by flow across the mouth of box shaped cavities, with and without lips, were studied in water and air. This device consists of a box with a flexible side upon which a sinusodial variation in volume of the box is imposed, thus inducing velocities normal to the flow in the mouth of the box. Motion pictures of dye, injected upstream of the mouth, indicate that vortex formations are caused by the fluctuating velocity fields normal and tangential to the mouth. This vortex formation causes the turbulent mixing zone, containing free stream kinetic energy, to curve into and out of the box. The instability of the mixing zone causes alternating pressures in the box, which in turn may provide the excitation mechanism for resonance. Flexibility of the structure in water, and the compressibility of air, provide energy storage between cycles. In either case the amplitude of the peak-to-peak pressure changes determine the magnitude of the velocity variations normal to the flow in the mouth of the box. (Author).
Book Synopsis Experimental Investigation of Flow-induced Cavity Resonance by : Paul Zoccola (Jr., J.)
Download or read book Experimental Investigation of Flow-induced Cavity Resonance written by Paul Zoccola (Jr., J.) and published by . This book was released on 2000 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Similarity-Law Investigation of Flow-Induced Cavity Resonance by : Stanley Mack
Download or read book Similarity-Law Investigation of Flow-Induced Cavity Resonance written by Stanley Mack and published by . This book was released on 1972 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Similarity-law analysis is applied to the case of flow noise due to a cavity resonator. Data is generated using generalized cavity models which are activated by a small wind tunnel. Analysis of the graphical display of non-dimensional parameters reveals regularities which indicate the nature of mechanism. Further investigation of the driving force involves use of hot wire anemometry and digital computer storage, analysis and display. (Author).
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1978 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1974 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1990 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Active Control of Flow-induced Cavity Resonance by : L. Mongeau
Download or read book Active Control of Flow-induced Cavity Resonance written by L. Mongeau and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report by : United States. National Bureau of Standards
Download or read book Report written by United States. National Bureau of Standards and published by . This book was released on 1959 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of Active Control of Flow-induced Cavity Resonance by : Louis Cattafesta
Download or read book Review of Active Control of Flow-induced Cavity Resonance written by Louis Cattafesta and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic Measurements of a Large Cavity in a Wind Tunnel by : James Scheiman
Download or read book Acoustic Measurements of a Large Cavity in a Wind Tunnel written by James Scheiman and published by . This book was released on 1978 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Flow-Induced Cavity Resonance by : Paul J. Zoccola, Jr.
Download or read book Experimental Investigation of Flow-Induced Cavity Resonance written by Paul J. Zoccola, Jr. and published by . This book was released on 2000-06-01 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The resonant excitation of a cavity by an equilibrium turbulent grazing flow was investigated. The objectives of the research were first, to understand the dynamic processes related to the shear tones generated by vortex shedding from the upstream edge, and then to determine practical techniques for controlling the excitation and reducing the resonance. Detailed measurements of the cavity pressure and the velocity field in the opening were performed. Spectral data on cavity pressure fluctuations were analyzed over a range of speeds to determine the behavior of both the shear tones and cavity tones during non-resonant and resonant conditions. The cross-spectral properties between the velocity components and cavity pressure were also obtained. The data support the finding that the resonant and nonresonant conditions are distinguished by the behavior of the convection velocity and by the distribution of energy production in the flow field. Techniques for controlling cavity resonance were also investigated. The measurements and data analyses techniques discussed above were also performed for three practical devices. These include a technique, developed by the author, whereby fluid is diverted into the cavity from the boundary layer. The diversion technique is the most effective in reducing cavity resonance.
Book Synopsis Experimental Investigation of Flow-Induced Cavity Resonance by :
Download or read book Experimental Investigation of Flow-Induced Cavity Resonance written by and published by . This book was released on 2000 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The resonant excitation of a cavity by an equilibrium turbulent grazing flow was investigated. The objectives of the research were first, to understand the dynamic processes related to the shear tones generated by vortex shedding from the upstream edge, and then to determine practical techniques for controlling the excitation and reducing the resonance. Detailed measurements of the cavity pressure and the velocity field in the opening were performed. Spectral data on cavity pressure fluctuations were analyzed over a range of speeds to determine the behavior of both the shear tones and cavity tones during non-resonant and resonant conditions. The cross-spectral properties between the velocity components and cavity pressure were also obtained. The data support the finding that the resonant and nonresonant conditions are distinguished by the behavior of the convection velocity and by the distribution of energy production in the flow field. Techniques for controlling cavity resonance were also investigated. The measurements and data analyses techniques discussed above were also performed for three practical devices. These include a technique, developed by the author, whereby fluid is diverted into the cavity from the boundary layer. The diversion technique is the most effective in reducing cavity resonance.
Book Synopsis Fourth Symposium on Naval Hydrodynamics by : Bennett L. Silverstein
Download or read book Fourth Symposium on Naval Hydrodynamics written by Bennett L. Silverstein and published by . This book was released on 1964 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1961 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flow-induced Resonance of Screen-covered Cavities by : Paul T. Soderman
Download or read book Flow-induced Resonance of Screen-covered Cavities written by Paul T. Soderman and published by . This book was released on 1990 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-flow Induced Cavity Resonances by : Frederick C. DeMetz
Download or read book Water-flow Induced Cavity Resonances written by Frederick C. DeMetz and published by . This book was released on 1976 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The mechanisms of flow-excited resonances in simple underwater cavity systems were investigated. The resonance frequencies of the internal fluctuating pressure field were determined as a function of turbulent boundary-layers thickness, flow velocity, cavity wall stiffness, and opening dimension. The Strouhal numbers and peak forcing function amplitudes are measured as a function of boundary-layer thickness and opening dimension. The results are compared with measurements on similar cavity systems in air."--Abstract (p. i).
Book Synopsis Numerical Simulation of Flow Induced Cavity Resonance by : Jake Izikson
Download or read book Numerical Simulation of Flow Induced Cavity Resonance written by Jake Izikson and published by . This book was released on 1995 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
