Download Full eBooks in PDF
Supersonic Jet Noise Reductions Predicted With Increased Jet Spreading Rate Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of Supersonic Jet Noise Reductions Predicted With Increased Jet Spreading Rate book. This book definitely worth reading, it is an incredibly well-written.
Author : Anonim
Publisher : Unknown
Page : 12 pages
File Size : 53,5 Mb
Release : 1995
Category : Electronic
ISBN : NASA:31769000609829
Author : Anonim
Publisher : Unknown
Page : 704 pages
File Size : 55,6 Mb
Release : 1995
Category : Aeronautics
ISBN : UIUC:30112050127304
Author : Anonim
Publisher : Unknown
Page : 1636 pages
File Size : 46,6 Mb
Release : 1995
Category : Government publications
ISBN : UIUC:30112005602260
Author : Anonim
Publisher : Unknown
Page : 1632 pages
File Size : 41,7 Mb
Release : 1995
Category : Government publications
ISBN : IND:30000047358423
Author : Anonim
Publisher : Unknown
Page : 192 pages
File Size : 44,7 Mb
Release : 1995
Category : Electronic
ISBN : UOM:39015034531957
Author : Anonim
Publisher : Unknown
Page : 964 pages
File Size : 46,7 Mb
Release : 1999
Category : Fluid mechanics
ISBN : UCSD:31822022744627
Author : Anonim
Publisher : Unknown
Page : 52 pages
File Size : 40,6 Mb
Release : 1972
Category : Jet planes
ISBN : STANFORD:36105000623517
Author : Anonim
Publisher : Unknown
Page : 70 pages
File Size : 46,6 Mb
Release : 2001
Category : Electronic
ISBN : NASA:31769000641632
Author : Anonim
Publisher : Unknown
Page : 974 pages
File Size : 51,8 Mb
Release : 1999
Category : Aeronautics
ISBN : STANFORD:36105021811372
Author : Anonim
Publisher : Unknown
Page : 458 pages
File Size : 45,7 Mb
Release : 1995
Category : Science
ISBN : MSU:31293022138626
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 184 pages
File Size : 42,6 Mb
Release : 2018-07-23
Category : Electronic
ISBN : 1723430412
Instability waves have been established as the dominant source of mixing noise radiating into the downstream arc of a supersonic jet when the waves have phase velocities that are supersonic relative to ambient conditions. Recent theories for supersonic jet noise have used the concepts of growing and decaying linear instability waves for predicting radiated noise. This analysis is extended to the prediction of noise radiation from supersonic coaxial jets. Since the analysis requires a known mean flow and the coaxial jet mean flow is not described easily in terms of analytic functions, a numerical prediction is made for its development. The Reynolds averaged, compressible, boundary layer equations are solved using a mixing length turbulence model. Empirical correlations are developed for the effects of velocity and temperature ratios and Mach number. Both normal and inverted velocity profile coaxial jets are considered. Comparisons with measurements for both single and coaxial jets show good agreement. The results from mean flow and stability calculations are used to predict the noise radiation from coaxial jets with different operating conditions. Comparisons are made between different coaxial jets and a single equivalent jet with the same total thrust, mass flow, and exit area. Results indicate that normal velocity profile jets can have noise reductions compared to the single equivalent jet. No noise reductions are found for inverted velocity profile jets operated at the minimum noise condition compared to the single equivalent jet. However, it is inferred that changes in area ratio may provide noise reduction benefits for inverted velocity profile jets. Dahl, Milo D. Glenn Research Center AEROACOUSTICS; COAXIAL FLOW; GAS JETS; JET AIRCRAFT NOISE; NOISE PREDICTION (AIRCRAFT); NOISE REDUCTION; SUPERSONIC JET FLOW; COMPUTATIONAL FLUID DYNAMICS; FLOW STABILITY; MACH NUMBER; MIXING LENGTH FLOW THEORY; TEMPERATURE RATIO; VELOCITY DISTRIBUTION...
Author : Anonim
Publisher : Unknown
Page : 336 pages
File Size : 46,8 Mb
Release : 2004
Category : Aeronautics
ISBN : UOM:39015058768964
Author : Anonim
Publisher : Unknown
Page : 470 pages
File Size : 55,9 Mb
Release : 1995
Category : Electronic
ISBN : NASA:31769000659394
Author : Aeronautical Society of India
Publisher : Unknown
Page : 322 pages
File Size : 54,6 Mb
Release : 2000
Category : Aeronautics
ISBN : UOM:39015049128443
Author : Center for Turbulence Research (U.S.)
Publisher : Unknown
Page : 410 pages
File Size : 45,8 Mb
Release : 2010
Category : Turbulence
ISBN : UCAL:B5619118
