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Supersonic Jet Exhaust Noise Investigation Volume I Summary Report
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Book Synopsis Supersonic Jet Exhaust Noise Investigation. Volume I. Summary Report by : Paul R. Knott
Download or read book Supersonic Jet Exhaust Noise Investigation. Volume I. Summary Report written by Paul R. Knott and published by . This book was released on 1976 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes major theoretical aerodynamic and acoustic developments and experimental findings aimed at providing a better understanding and a detailed mathematical specification of the noise-producing sources of simple exhaust jets. A review is given of calculation procedures for shock wave structure and flow field properties of simple circular jets. Results of new theoretical acoustic developments illustrating the influence of a jet's mean flow shrouding on jet acoustic radiation for unheated and heated jets are outlined. Additional discussions of interesting insights regarding the classical turbulent mixing theory of jet noise and the aeroacoustic formulations for a jet's orderly structure are given. Summaries of a series of high velocity, high temperature velocity field measurements using a General Electric developed laser velocimeter are discussed, and the application of the velocimeter for performing turbulence spectra and in-jet to far-field cross-correlation type measurements is reviewed. Key experiments illustrating the influence of swirl and combustion roughness on jet noise generation/reduction are presented. Results of high velocity and high temperature refraction experiments are also discussed, as well as discussions concerning jet flow amplifying effects of injected low frequency noise. Additionally, suggestions concerning shock-related noise as related to full-size engines are given. And finally, recommendations for future investigations are given. (Author).
Book Synopsis Supersonic Jet Exhaust Noise Investigation. Volume IV. Acoustic Far-Field/Near-Field Data Report by : Paul R. Knott
Download or read book Supersonic Jet Exhaust Noise Investigation. Volume IV. Acoustic Far-Field/Near-Field Data Report written by Paul R. Knott and published by . This book was released on 1976 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is an acoustic data report presenting a series of parametric acoustic far-field and near-field results for subsonic and supersonic heated flow conditions for a simple conical nozzle (thin lip and thick lip) and a convergent-divergent nozzle at design and off-design conditions. (Author).
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1973 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supersonic Jet Exhaust Noise Investigation. Volume II. Technical Report by : Paul R. Knott
Download or read book Supersonic Jet Exhaust Noise Investigation. Volume II. Technical Report written by Paul R. Knott and published by . This book was released on 1976 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses detailed accounts of major theoretical and experimental investigations directed toward obtaining better understanding and mathematical specification of supersonic turbulent jets. Complete theoretical discussions are given describing the influence of a jet's mean flow shrouding on acoustic radiation of heated and unheated jets, approximate closed form acoustic expressions for turbulent mixing noise characterized by self-noise and shear-noise are given, and theoretical aero-acoustic formulations for the orderly structure of supersonic jets are reviewed. Extensive theory/data comparisons of developed acoustic models are given. Experimental investigations aimed at studying high velocity jet refraction, and the influence of jet swirl and upstream combustion roughness on jet noise is presented. Additionally, an extensive series of laser velocimeter measurements for high velocity and high temperature simple circular jets is discussed. Results include hot-film/laser velocimeter comparisons for ambient jets, mean velocity and turbulent velocity plume surveys of heated supersonic shock-free and shocked flow nozzles, and a demonstration experiment illustrating the capability of performing in-jet turbulence to far-field acoustic cross-correlation. (Author).
Book Synopsis The Generation and Radiation of Supersonic Jet Noise: Summary of supersonic jet noise studies by :
Download or read book The Generation and Radiation of Supersonic Jet Noise: Summary of supersonic jet noise studies written by and published by . This book was released on 1972 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Generation and Radiation of Supersonic Jet Noise by : Lockheed-Georgia Company
Download or read book The Generation and Radiation of Supersonic Jet Noise written by Lockheed-Georgia Company and published by . This book was released on 1972 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1977-07 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supersonic Jet Exhaust Noise Investigation. Volume III. Computer User's Manual for Aero-Acoustic Predictions by : David R. Ferguson
Download or read book Supersonic Jet Exhaust Noise Investigation. Volume III. Computer User's Manual for Aero-Acoustic Predictions written by David R. Ferguson and published by . This book was released on 1976 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report gives a detailed description of aerodynamic (Shock-free/Shocked flow) and acoustic turbulent mixing computer prediction programs developed by the General Electric Company for subsonic and supersonic simple exhaust jets. In addition to giving detailed descriptions of the aeroacoustic formulations and discussions of computer manual instructions for operating the program, extensive theory/data comparisons are given, as well as computer program listings and sample test cases. (Author).
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1982 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Generation and Radiation of Supersonic Jet Noise. Volume 1. Summary by :
Download or read book The Generation and Radiation of Supersonic Jet Noise. Volume 1. Summary written by and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains a summary of all the work accomplished in a detailed investigation of the noise characteristics of supersonic jet aircraft, as well as a summary of items in an exploratory program. There are three main sections. The first summarizes the problems with existing theories at the time the contract was initiated. The second outlines the criteria for a unified self-consistent theory of aerodynamic noise generation, and presents, a brief derivation of Lilley's equation which is the basis for the theoretical studies in jet noise generation and radiation. The third section summarizes the work accomplished.
Book Synopsis Supersonic Jet Exhaust Noise Investigation by : Paul R. Knott
Download or read book Supersonic Jet Exhaust Noise Investigation written by Paul R. Knott and published by . This book was released on 1974 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This progress report summarizes the major theoretical and experimental efforts performed during the first year of a two-year program sponsored by the Air Force and the Department of Transportation on Supersonic Jet Exhaust Noise. The overall objective of the program is to develop the technology to significantly reduce supersonic aircraft propulsion system noise with minimum associated performance and weight penalties. To reach the objectives of this program a varied and comprehensive research program is being carried out to develop the basic theory and experimental methods for understanding and quantizing the acoustic characteristics of simple supersonic jets for a range of velocities and temperatures typical of present and future military and commercial supersonic aircraft propulsion systems. (Modified author abstract).
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1967 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Shock-cell Noise Reduction for Dual-stream Nozzles in Simulated Flight by :
Download or read book Experimental Investigation of Shock-cell Noise Reduction for Dual-stream Nozzles in Simulated Flight written by and published by . This book was released on 1984 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :General Electric Company. Advanced Engineering and Technology Programs. Aircraft Engine Group Publisher : ISBN 13 : Total Pages : pages Book Rating :4.:/5 (421 download)
Book Synopsis Supersonic Jet Exhaust Noise Investigation by : General Electric Company. Advanced Engineering and Technology Programs. Aircraft Engine Group
Download or read book Supersonic Jet Exhaust Noise Investigation written by General Electric Company. Advanced Engineering and Technology Programs. Aircraft Engine Group and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Generation and Radiation of Supersonic Jet Noise: Jet flow measurement and analysis with special emphasis on remote sensing devices by : Lockheed-Georgia Company
Download or read book The Generation and Radiation of Supersonic Jet Noise: Jet flow measurement and analysis with special emphasis on remote sensing devices written by Lockheed-Georgia Company and published by . This book was released on 1972 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
