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Nozzle Aerodynamic Stability During A Throat Shift
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781720648635 Total Pages :86 pages Book Rating :4.6/5 (486 download)
Book Synopsis Nozzle Aerodynamic Stability During a Throat Shift by : National Aeronautics and Space Administration (NASA)
Download or read book Nozzle Aerodynamic Stability During a Throat Shift written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-03 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted on the internal aerodynamic stability of a family of two-dimensional (2-D) High Speed Civil Transport (HSCT) nozzle concepts. These nozzles function during takeoff as mixer-ejectors to meet acoustic requirements, and then convert to conventional high-performance convergent-divergent (CD) nozzles at cruise. The transition between takeoff mode and cruise mode results in the aerodynamic throat and the minimum cross-sectional area that controls the engine backpressure shifting location within the nozzle. The stability and steadiness of the nozzle aerodynamics during this so called throat shift process can directly affect the engine aerodynamic stability, and the mechanical design of the nozzle. The objective of the study was to determine if pressure spikes or other perturbations occurred during the throat shift process and, if so, identify the caused mechanisms for the perturbations. The two nozzle concepts modeled in the test program were the fixed chute (FC) and downstream mixer (DSM). These 2-D nozzles differ principally in that the FC has a large over-area between the forward throat and aft throat locations, while the DSM has an over-area of only about 10 percent. The conclusions were that engine mass flow and backpressure can be held constant simultaneously during nozzle throat shifts on this class of nozzles, and mode shifts can be accomplished at a constant mass flow and engine backpressure without upstream pressure perturbations.Kawecki, Edwin J. and Ribeiro, Gregg L.Glenn Research CenterAERODYNAMIC STABILITY; NOZZLE GEOMETRY; THROATS; CIVIL AVIATION; SUPERSONIC TRANSPORTS; CONVERGENT-DIVERGENT NOZZLES; TWO DIMENSIONAL FLOW; MIXERS; CHUTES; MASS FLOW; DYNAMIC STABILITY; PERTURBATION
Book Synopsis The Effect of Throat Contouring on Two-dimensional Converging-diverging Nozzles at Static Conditions by : Mary L. Mason
Download or read book The Effect of Throat Contouring on Two-dimensional Converging-diverging Nozzles at Static Conditions written by Mary L. Mason and published by . This book was released on 1980 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Throat Contouring on Two-dimensional Converging-diverging Nozzles at Static Conditions by : Mary L. Mason
Download or read book The Effect of Throat Contouring on Two-dimensional Converging-diverging Nozzles at Static Conditions written by Mary L. Mason and published by . This book was released on 1980 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Design and Analysis of a Dual Throat Hypersonic Nozzle by : D.F. Long
Download or read book Aerodynamic Design and Analysis of a Dual Throat Hypersonic Nozzle written by D.F. Long and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Nozzle Inlet Geometry on Performance of a Swiveled Convergent-divergent Nozzle by : Albert J. Pavli
Download or read book Effect of Nozzle Inlet Geometry on Performance of a Swiveled Convergent-divergent Nozzle written by Albert J. Pavli and published by . This book was released on 1959 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018) by : U. Chandrasekhar
Download or read book Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018) written by U. Chandrasekhar and published by Springer. This book was released on 2018-12-20 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the best articles presented by researchers and industrial experts at the International Conference on “Innovative Design and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018)”. The papers discuss new design concepts, analysis and manufacturing technologies, with an emphasis on achieving improved performance by downsizing; improving the weight-to-strength ratio, fuel efficiency, and operational capability at room and elevated temperatures; reducing wear and tear; and addressing NVH aspects, while balancing the challenges of Euro IV/Barat Stage IV emission norms and beyond, greenhouse effects, and recyclable materials. The innovative methods discussed here offer valuable reference material for educational and research organizations, as well as industry, encouraging them to pursue challenging projects of mutual interest.
Book Synopsis Fluidic Nozzle Throats in Solid Rocket Motors by : Kan Xie
Download or read book Fluidic Nozzle Throats in Solid Rocket Motors written by Kan Xie and published by Springer. This book was released on 2019-04-26 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the performance and application of fluidic nozzle throats for solid rocket motors, discussing their flow details and characterization performance, as well as the influence of the particle phase on their performance. It comprehensively covers a range of fluidic nozzle throats in solid rocket motors and is richly illustrated with impressive figures and full-color photographs. It is a valuable resource for students and researchers in the fields of aeronautics, astronautics and related industries wishing to understand the fundamentals and theories of fluidic nozzle throats and engage in fluidic nozzle throat analysis and design.
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Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1965 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Scientific and Technical Aerospace Reports by :
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Book Synopsis Experimental Aerodynamics by : Stefano Discetti
Download or read book Experimental Aerodynamics written by Stefano Discetti and published by CRC Press. This book was released on 2017-03-16 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental Aerodynamics provides an up to date study of this key area of aeronautical engineering. The field has undergone significant evolution with the development of 3D techniques, data processing methods, and the conjugation of simultaneous measurements of multiple quantities. Written for undergraduate and graduate students in Aerospace Engineering, the text features chapters by leading experts, with a consistent structure, level, and pedagogical approach. Fundamentals of measurements and recent research developments are introduced, supported by numerous examples, illustrations, and problems. The text will also be of interest to those studying mechanical systems, such as wind turbines.
Book Synopsis Material Presented at the NACA Conference on Supersonic Aerodynamics at Ames Aeronautical Laboratory on June 4, 1946, National Advisory Committee for Aeronautics by : United States. National Advisory Committee for Aeronautics
Download or read book Material Presented at the NACA Conference on Supersonic Aerodynamics at Ames Aeronautical Laboratory on June 4, 1946, National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1946 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dictionary of Space Technology by : Joseph Angelo
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