Download or read book The Generation and Radiation of Supersonic Jet Noise Progress toward a unified theory of jet engine noise written by Lockheed-Georgia Company and published by . This book was released on 1972 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Generation and Radiation of Supersonic Jet Noise written by Philip Ellis Doak and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Existing theories of aerodynamic noise generation are critically reviewed with special emphasis on conceptual adequacy and physical scope with special reference to supersonic jet noise. In this review the basic work of Stokes, Kirchoff and Rayleigh on fluctuating motions in fluids is recalled and developed to provide a firm basis for the critique. The advantages and disadvantages of acoustic analogy theories such as Lighthill's are thoroughly discussed in Section 11.3. A contribution is made towards removing the criticisms made by Lighthill of Ribner's 'isotropic source tensor' theory. New developments such as those by Crow, Lilley and Doak are emphasized. On the basis of the evidence provided by the critical review, a new unified theory for jet noise has been devised. (Author).
Download or read book The Generation and Radiation of Supersonic Jet Noise Volume III Progress Toward a Unified Theory of Jet Engine Noise written by Philip E. Doak and published by . This book was released on 1972 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Existing theories of aerodynamic noise generation are critically reviewed with special emphasis on conceptual adequacy and physical scope with special reference to supersonic jet noise. In this review the basic work of Stokes, Kirchoff and Rayleigh on fluctuating motions in fluids is recalled and developed to provide a firm basis for the critique. The advantages and disadvantages of acoustic analogy theories such as Lighthill's are thoroughly discussed in Section 11.3. A contribution is made towards removing the criticisms made by Lighthill of Ribner's 'isotropic source tensor' theory. New developments such as those by Crow, Lilley and Doak are emphasized. On the basis of the evidence provided by the critical review, a new unified theory for jet noise has been devised. (Author).
Download or read book The Generation and Radiation of Supersonic Jet Noise Future studies for definition of supersonic jet noise generation and reduction mechanisms written by and published by . This book was released on 1972 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book The Generation and Radiation of Supersonic Jet Noise Append 2 Shock associated noise data written by and published by . This book was released on 1972 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Generation and Radiation of Supersonic Jet Noise Theory of turbulence generated jet noise noise radiation from upstream sources and combustion noise written by and published by . This book was released on 1972 with total page 194 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 1973 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Generation and Radiation of Supersonic Jet Noise written by Geoffrey M. Lilley and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents a series of specific theoretical studies directed toward the solution of jet noise generation and radiation, upstream noise radiation and combustion noise generation. Three theories are presented. Lilley's work is a new theory of jet noise generation, based on identification of acoustic and source generation terms. The acoustic 'converted wave equation' derived includes the Pridmore-Brown/Mungur shear refraction term. Plumblee presents a theoretical analysis and numerical solution techniques for solving for the radiation field from a source within a jet flow and specifically deals with radiation from an acoustic distribution initally specified at the end of a circular exhaust duct termination through the jet flow to the surrounding medium. Finally, Strahle presents a theory on afterburner type combustion noise generation and radiation. Order of magnitude analyses are made in an attempt to estimate acoustic power levels and refraction effects are also investigated. (Author).
Download or read book Aeronautical Engineering written by and published by . This book was released on 1986 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
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:
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 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transportation Noise Bulletin written by and published by . This book was released on 1972 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Generation and Radiation of Supersonic Jet Noise Volume 1 Summary of Supersonic Jet Noise Studies written by and published by . This book was released on 1972 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a summary report of the results of a 13-month research program on the generation and reduction of supersonic jet noise. This program was planned as the first phase of a four-phase effort. Tasks compromising this Phase 1 program were as follows: reviews and evaluation of existing theoretical models for supersonic jet noise generation and radiation; development of the framework of a new, unified theory of aerodynamic noise; development of a new theoretical model of turbulent mixing region noise; development of a new theoretical model for calculating propagation and radiation of upstream noise; a preliminary review of combustion noise; tests on turbulent mixing region noise and shock-associated noise; review of the problems of jet flow measurement and analysis; development of new instrumentation for jet flow measurement; establishment of full facilities for the total program; formulation of the program for future studies.
Download or read book Effects of motion on jet exhaust noise from aircraft written by K. S. Chun and published by . This book was released on 1976 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress on NASA Research Relating to Noise Alleviation of Large Subsonic Jet Aircraft written by United States. National Aeronautics and Space Administration and published by . This book was released on 1968 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
