Download or read book Radiation of Sound from Unflanged Cylindrical Ducts written by S. I. Hariharan and published by . This book was released on 1983 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation of Sound from Unflanged Cylindrical Ducts written by and published by . This book was released on 1983 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation of Sound from Unflanged Cylindrical Ducts written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-06 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculations of sound radiated from unflanged cylindrical ducts are presented. The numerical simulation models the problem of an aero-engine inlet. The time dependent linearized Euler equations are solved from a state of rest until a harmonic solution is attained. A fourth order accurate finite difference scheme is used and solutions are obtained from a fully vectorized Cyber-203 computer program. Cases of both plane waves and spin modes are treated. Spin modes model the sound generated by a turbofan engine. Boundary conditions for both plane waves and spin modes are treated. Solutions obtained are compared with experiments conducted at NASA Langley Research Center. Hartharan, S. L. and Bayliss, A. Langley Research Center NASA-CR-172171, NAS 1.26:172171 NAS1-17070; DE-AC02-76ER-03077; AF-AFOSR-0020-81
Download or read book Acoustic Radiation Patterns for a Source in a Hard walled Unflanged Circular Duct written by Raymond Gust Holm and published by . This book was released on 1973 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acoustic radiation patterns are measured over a 320 deg arc for a point source in a finite length, hard walled, unflanged circular duct. The measured results are compared with computed results which are based on the Wiener-Hopf solution for radiation from a semi-infinite unflanged duct. Measurements and computations are presented for frequencies slightly below and slightly above each of the first four higher order radial mode cutoff frequencies. It is found that the computed and measured patterns show better agreement below the mode cut-off frequencies than above and that the agreement is better at lower frequencies that at higher frequencies. The computed radiation patterns do not show fine lobes which are caused by diffraction from the back end of the duct.
Download or read book Experimental Investigation of the Radiation of Sound from an Unflanged Duct and a Bellmouth Including the Flow Effect written by Jean-Michel Ville and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustical Society of America Radiation of sound from an unflanged circular duct with flow written by D. L. Lansing and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sound Radiation from a Finite Length Unflanged Circular Duct with Uniform Flow written by Kenji Ogimoto and published by . This book was released on 1979 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sound Radiation from a Finite Length Unflanged Circular Duct with Uniform Axial Flow written by K. Ogimoto and published by . This book was released on 1980 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sound Radiation from a Cylindrical Duct written by Steven T. Hocter and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exact Solutions for Sound Radiation from a Circular Duct written by and published by . This book was released on 1997 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigation of the Radiation of Sound from an Unflanged Duct and a Bellmouth Including the Flow Effect written by Jean-Michel Ville and published by . This book was released on 1980 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Duct Acoustics written by Erkan Dokumacı and published by Cambridge University Press. This book was released on 2021-05-13 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand topics ranging from the foundations of duct acoustics to acoustic design of mufflers and silencers with this hands-on reference.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Archives of Acoustics Quarterly written by and published by . This book was released on 2019 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by United States. National Aeronautics and Space Administration and published by . This book was released on 1980 with total page 76 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 1980 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Formulas of Acoustics written by F.P. Mechel and published by Springer Science & Business Media. This book was released on 2008-06-25 with total page 1283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of formulas has been written by applied scientists and industrial engineers for design professionals and students who work in engineering acoustics. It is subdivided into the most important fields of applied acoustics, each dealing with a well-defined type of problem. It provides easy and rapid access to profound and comprehensive information. In addition to formulas, useful principles and computational procedures are given.
