Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Exhaust Nozzle Plume Effects On Sonic Boom Test Results For Vectored Nozzles full books in PDF, epub, and Kindle. Read online Exhaust Nozzle Plume Effects On Sonic Boom Test Results For Vectored Nozzles ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Raymond S. Castner
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (815 download)
Download or read book Exhaust nozzle plume effects on sonic boom test results for vectored nozzles written by Raymond S. Castner and published by . This book was released on 2012 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Raymond Castner
Publisher : BiblioGov
ISBN 13 : 9781289170592
Total Pages : 26 pages
Book Rating : 4.1/5 (75 download)
Download or read book Exhaust Nozzle Plume Effects on Sonic Boom Test Results for Vectored Nozzles written by Raymond Castner and published by BiblioGov. This book was released on 2013-07 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NASA Technical Reports Servcr (NTRS) houses half a million publications that are a valuable means of information to researchers, teachers, students, and the general public. These documents are all aerospace related with much scientific and technical information created or funded by NASA. Some types of documents include conference papers, research reports, meeting papers, journal articles and more. This is one of those documents.
Author : Nasa Technical Reports Server (Ntrs)
Publisher : BiblioGov
ISBN 13 : 9781289168445
Total Pages : 28 pages
Book Rating : 4.1/5 (684 download)
Download or read book Exhaust Nozzle Plume Effects on Sonic Boom Test Results for Isolated Nozzles written by Nasa Technical Reports Server (Ntrs) and published by BiblioGov. This book was released on 2013-07 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reducing or eliminating the operational restrictions of supersonic aircraft over populated areas has led to extensive research at NASA. Restrictions were due to the disturbance of the sonic boom, caused by the coalescence of shock waves formed off the aircraft. Recent work has been performed to reduce the magnitude of the sonic boom N-wave generated by airplane components with focus on shock waves caused by the exhaust nozzle plume. Previous Computational Fluid Dynamics (CFD) analysis showed how the shock wave formed at the nozzle lip interacts with the nozzle boat-tail expansion wave. An experiment was conducted in the 1- by 1-ft Supersonic Wind Tunnel at the NASA Glenn Research Center to validate the computational study. Results demonstrated how the nozzle lip shock moved with increasing nozzle pressure ratio (NPR) and reduced the nozzle boat-tail expansion, causing a favorable change in the observed pressure signature. Experimental results were presented for comparison to the CFD results. The strong nozzle lip shock at high values of NPR intersected the nozzle boat-tail expansion and suppressed the expansion wave. Based on these results, it may be feasible to reduce the boat-tail expansion for a future supersonic aircraft with under-expanded nozzle exhaust flow by modifying nozzle pressure or nozzle divergent section geometry.
Author : Raymond S. Castner
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (88 download)
Download or read book Exhaust Nozzle Plume Effects on Sonic Boom Test Results for Isolated Nozzles written by Raymond S. Castner and published by . This book was released on 2011 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781719392037
Total Pages : 26 pages
Book Rating : 4.3/5 (92 download)
Download or read book Exhaust Nozzle Plume and Shock Wave Interaction written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamental research for sonic boom reduction is needed to quantify the interaction of shock waves generated from the aircraft wing or tail surfaces with the exhaust plume. Both the nozzle exhaust plume shape and the tail shock shape may be affected by an interaction that may alter the vehicle sonic boom signature. The plume and shock interaction was studied using Computational Fluid Dynamics simulation on two types of convergent-divergent nozzles and a simple wedge shock generator. The nozzle plume effects on the lower wedge compression region are evaluated for two- and three-dimensional nozzle plumes. Results show that the compression from the wedge deflects the nozzle plume and shocks form on the deflected lower plume boundary. The sonic boom pressure signature of the wedge is modified by the presence of the plume, and the computational predictions show significant (8 to 15 percent) changes in shock amplitude. Castner, Raymond S. and Elmiligui, Alaa and Cliff, Susan Ames Research Center; Glenn Research Center; Langley Research Center COMPUTATIONAL FLUID DYNAMICS; EXHAUST NOZZLES; SHOCK WAVE INTERACTION; PLUMES; EXHAUST GASES; CONVERGENT-DIVERGENT NOZZLES; SONIC BOOMS; TAIL SURFACES; DEFLECTION; BOUNDARIES
Author : Trong T. Bui
Publisher : BiblioGov
ISBN 13 : 9781289230487
Total Pages : 50 pages
Book Rating : 4.2/5 (34 download)
Download or read book Cfd Analysis of Nozzle Jet Plume Effects on Sonic Boom Signature written by Trong T. Bui and published by BiblioGov. This book was released on 2013-07 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational fluid dynamics study is conducted to examine nozzle exhaust jet plume effects on the Sonic boom signature of a supersonic aircraft. A simplified axisymmetric nozzle geometry, representative of the nozzle on the NASA Dryden NF-15B Lift and Nozzle Change Effects on Tail Shock research airplane, is considered. The computational fluid dynamics code is validated using available wind-tunnel sonic boom experimental data. The effects of grid size, spatial order of accuracy. grid type, and flow viscosity on the accuracy of the predicted sonic boom pressure signature are quantified. Grid lines parallel to the Mach wave direction are found to give the best results. Second-order accurate upwind methods are required as a minimum for accurate sonic boom simulations. The highly underexpanded nozzle flow is found to provide significantly more reduction in the tail shock strength in the sonic boom N-wave pressure signature than perfectly expanded and overexpanded nozzle flows. A tail shock train in the sonic boom signature is observed for the highly underexpanded nozzle flow. Axisymmetric computational fluid dynamics simulations show the flow physics inside the F-15 nozzle to be nonisentropic and complex.
Author : Trong T. Bui
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (73 download)
Download or read book CFD Analysis of Nozzle Jet Plume Effects on Sonic Boom Signature written by Trong T. Bui and published by . This book was released on 2009 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational fluid dynamics study is conducted to examine nozzle exhaust jet plume effects on the sonic boom signature of a supersonic aircraft. A simplified axisymmetric nozzle geometry, representative of the nozzle on the NASA Dryden NF-15B Lift and Nozzle Change Effects on Tail Shock research airplane, is considered. The computational fluid dynamics code is validated using available wind-tunnel sonic boom experimental data. The effects of grid size, spacial order of accuracy, grid type, and flow viscosity on the accuracy of the predicted sonic boom pressure signature are quantified. Grid lines parallel to the Mach wave direction are found to give the best results. Second-order accurate upwind methods are required as a minimum for accurate sonic boom simulations. The highly underexpanded nozzle flow is found to provide significantly more reduction in the tail shock strength in the sonic boom N-wave pressure signature than perfectly expanded and overexpanded nozzle flows. A tail shock train in the sonic boom signature is observed for the highly underexpanded nozzle flow. Axisymmetric computational fluid dynamics simulations show the flow physics inside the F-15 nozzle to be nonisentropic and complex.
Author : Raymond Castner
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (815 download)
Download or read book Exhaust plume effects on sonic boom for a delta wing and a swept wing-body model written by Raymond Castner and published by . This book was released on 2012 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Raymond L. Barger
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)
Download or read book Comparison of Jet Plume Shape Predictions and Plume Influence on Sonic Boom Signature written by Raymond L. Barger and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.F/5 ( download)
Download or read book NASA Scientific and Technical Publications written by and published by . This book was released on 1993 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Raymond Morton Hicks
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.F/5 ( download)
Download or read book Prediction of Aircraft Sonic Boom Characteristics from Experimental Near Field Results written by Raymond Morton Hicks and published by . This book was released on 1967 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722108878
Total Pages : 26 pages
Book Rating : 4.1/5 (88 download)
Download or read book Comparison of Jet Plume Shape Predictions and Plume Influence on Sonic Boom Signature written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-30 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Euler shock-fitting marching code yields good agreement with semiempirically determined plume shapes, although the agreement decreases somewhat with increasing nozzle angle and the attendant increase in the nonisentropic nature of the flow. Some calculations for the low boom configuration with a simple engine indicated that, for flight at altitudes above 60,000 feet, the plume effect is dominant. This negates the advantages of a low boom design. At lower altitudes, plume effects are significant, but of the order that can be incorporated into the low boom design process. Barger, Raymond L. and Melson, N. Duane Langley Research Center RTOP 505-59-53-01...
Author : National Research Council (U.S.). Committee on SST-Sonic Boom. Subcommittee on Physical Effects
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (1 download)
Download or read book Report on Physical Effects of the Sonic Boom written by National Research Council (U.S.). Committee on SST-Sonic Boom. Subcommittee on Physical Effects and published by . This book was released on 1968 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. A. Durston
Publisher :
ISBN 13 :
Total Pages : 489 pages
Book Rating : 4.:/5 (11 download)
Download or read book Nozzle Plume/shock Interaction Experimental and Computational Sonic Boom Analyses from the NASA Ames 9-by 7-foot Supersonic Wind Tunnel written by D. A. Durston and published by . This book was released on 2018 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA SP. written by and published by . This book was released on 1993 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 722 pages
Book Rating : 4.F/5 ( download)
Download or read book Aeronautical Engineering written by and published by . This book was released on 1993 with total page 722 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)
