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Author : Lynwood H. Luebke (CAPT, USAF.)
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (132 download)
Download or read book Optical Study of the Flow in a Mach 6 Nozzle written by Lynwood H. Luebke (CAPT, USAF.) and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lynwood H. Luebke
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (227 download)
Download or read book Optical Study of the Flow in a Mach 6 Nozzle written by Lynwood H. Luebke and published by . This book was released on 1974 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A qualitative experimental study was performed to visualize the flow in a Pratt and Whitney contoured minimum length gas dynamic laser nozzle. The study was done on a blowdown wind tunnel and the test section was designed to model a single channel of flow in the gas dynamic laser. The nozzle has an area ratio of 66 and accelerates the flow to a Mach number of 6 allowing for boundary layer effects. Dry air or nitrogen at 80F total temperature was used as the flowing media. Total pressure was varied from 90 to 180 psig. The flow was visualized using schlieren optical techniques. Neither separation nor disturbances caused by wakes or shock waves was observed in the divergent section of the nozzle. It was determined that the nozzle performed as designed. Using schlieren photographs, it was determined that the nozzle accelerated the flow to Mach 6. The nozzle did follow ideal gas flow characteristics even though it had a throat height of 0.0058 in. Nozzle throat shocks observed in previous studies and thought to be induced by a non-uniform boundary layer growth in the throat region were not observed in this study.
Author : Valentine Korah
Publisher :
ISBN 13 :
Total Pages : 2354 pages
Book Rating : 4.4/5 (11 download)
Download or read book An Introductory Guide to EC Competition Law and Practice written by Valentine Korah and published by . This book was released on 1994 with total page 2354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William J. Monta
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (317 download)
Download or read book Pitot Survey of Exhaust Flow Field of a 2-D Scramjet Nozzle at Mach 6 with Air Or Freon and Argon Used for Exhaust Simulation written by William J. Monta and published by . This book was released on 1992 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Douglas B. Bailey (1LT, USAF.)
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (132 download)
Download or read book An Optical Study of the Flow Conditions in Three, Small Two-dimensional Nozzles written by Douglas B. Bailey (1LT, USAF.) and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 704 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 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 852 pages
Book Rating : 4.3/5 (91 download)
Download or read book Journal of Current Laser Abstracts written by and published by . This book was released on 1976 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fernand Marcel Devienne
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (298 download)
Download or read book Study of the Flow Inside Mach 4 Number Nozzle in the Very Low Density Wind Tunnel written by Fernand Marcel Devienne and published by . This book was released on 1959 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 : 9781722487072
Total Pages : 38 pages
Book Rating : 4.4/5 (87 download)
Download or read book Pitot Survey of Exhaust Flow Field of a 2-D Scramjet Nozzle at Mach 6 with Air Or Freon and Argon Used for Exhaust Simulation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-09 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pitot-rake survey of the simulated exhaust of a half-span scramjet nozzle model was conducted in the Langley 20-Inch Mach 6 Tunnel to provide an additional data set for computational fluid dynamics (CFD) code comparisons. A wind-tunnel model was tested with a 26-tube pitot rake that could be manually positioned along the mid-semispan plane of the model. The model configuration had an external expansion surface of 20 degrees and an internal cowl expansion of 12 degrees; tests were also performed with a flow fence. Tests were conducted at a free-stream Reynolds number of approximately 6.5 x 10(exp 6) per foot and a model angle of attack of -0.75 degrees. The two exhaust gas mediums that were tested were air and a Freon 12-argon mixture. Each medium was tested at two jet total pressures at approximately 28 and 14 psia. This document presents the flow-field survey results in graphical as well as tabular form, and several observations concerning the results are discussed. The surveys reveal the major expected flow-field characteristics for each test configuration. For a 50-percent freon 12 and 50-percent argon mixture by volume (Fr-Ar), the exhaust jet pressures were slightly higher than those for air. The addition of a flow fence slightly raised the pitot pressure for the Fr-Ar mixture, but it produced little change for air. For the Fr-Ar exhaust, the plume was larger and the region between the shock wave and plume was smaller. Monta, William J. Langley Research Center RTOP 505-59-40-03...
Author : William J. Monta
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (841 download)
Download or read book Pilot Survey of Exhaust Flow Field of a 2-D Scramjet Nozzle at Mach 6 with Air Or Freon and Argon Used for Exhaust Simulation written by William J. Monta and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721142248
Total Pages : 156 pages
Book Rating : 4.1/5 (422 download)
Download or read book 1998 Calibration of the Mach 4. 7 and Mach 6 Arc-Heated Scramjet Test Facility Nozzles written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: A calibration of the Arc-Heated Scramjet Test Facility (AHSTF) Mach 4.7 and Mach 6 nozzles was performed in 1998. For each nozzle, three different typical facility operating test points were selected for calibration. Each survey consisted of measurements, at 340 separate locations across the 11 inch square nozzle exit plane, of pitot pressure, static pressure, and total temperature. Measurement density was higher (4/inch) in the boundary layer near the nozzle wall than in the core nozzle flow (1/inch). The results generated for each of these calibration surveys were contour plots at the nozzle exit plane of the measured and calculated flow properties which completely defined the thermodynamic state of the nozzle exit flow. An area integration of the mass flux at the nozzle exit for each survey was compared to the AHSTF mass flow meter results to provide an indication of the overall quality of the calibration performed. The percent difference between the integrated nozzle exit mass flow and the flow meter ranged from 0.0 to 1.3 percent for the six surveys. Finally, a comparison of this 1998 calibration was made with the 1986 calibration. Differences of less than 10 percent were found within the nozzle core flow while in the boundary layer differences on the order of 20 percent were quite common. Witte, David W. and Irby, Richard G. and Auslender, Aaron H. and Rock, Kenneth E. Langley Research Center WU 23-745-30-10
Author :
Publisher :
ISBN 13 :
Total Pages : 650 pages
Book Rating : 4.:/5 (319 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1992 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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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 : Dora Musielak
Publisher : John Wiley & Sons
ISBN 13 : 1119640601
Total Pages : 516 pages
Book Rating : 4.1/5 (196 download)
Download or read book Scramjet Propulsion written by Dora Musielak and published by John Wiley & Sons. This book was released on 2023-01-10 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scramjet Propulsion Explore the cutting edge of HAP technologies with this comprehensive resource from an international leader in her field Scramjet Propulsion: A Practical Introduction delivers a comprehensive treatment of hypersonic air breathing propulsion and its applications. The book covers the most up-to-date hypersonic technologies, like endothermic fuels, fuel injection and flameholding systems, high temperature materials, and TPS, and offers technological overviews of hypersonic flight platforms like the X-43A, X-51A, and HiFIRE. It is organized around easy-to-understand explanations of technical challenges and provides extensive references for the information contained within. The highly accomplished author provides readers with a fulsome description of the theoretical underpinnings of hypersonic technologies, as well as critical design and technology issues affecting hypersonic air breathing propulsion technologies. The book’s combination of introductory theory and advanced instruction about individual hypersonic engine components is ideal for students and practitioners in fields as diverse as hypersonic vehicle and propulsion development for missile defense technologies, launch aerospaceplanes, and civilian transports. Over 250 illustrations and tables round out the material. Readers will also learn from: A thorough introduction to hypersonic flight, hypersonic vehicle concepts, and a review of fundamental principles in hypersonic air breathing propulsion Explorations of the aerothermodynamics of scramjet engines and the design of scramjet components, as well as hypersonic air breathing propulsion combustors and fuels Analyses of dual-mode combustion phenomena, materials structures, and thermal management in hypersonic vehicles, and combined cycle propulsion An examination of CFD analysis, ground and flight testing, and simulation Perfect for researchers and graduate students in aerospace engineering, Scramjet Propulsion: A Practical Introduction is also an indispensable addition to the libraries of engineers working on hypersonic vehicle development seeking a state-of-the-art resource in one of the most potentially disruptive areas of aerospace research today.
Author :
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (317 download)
Download or read book NASA Scientific and Technical Publications: A Catalog of Special Publications, Reference Publications, Conference Publications, and Technical Papers, 1991-1992 written by and published by . This book was released on 1993 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1334 pages
Book Rating : 4.:/5 (89 download)
Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781730791277
Total Pages : 62 pages
Book Rating : 4.7/5 (912 download)
Download or read book Mach 6 Electroformed Nickel Nozzle Refurbishment: Fnas Investigation of Ultra-Smooth Surfaces written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-03 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The task objective has been to apply a coating of nickel-phosphorous alloy to a laminar flow wind tunnel nozzle by catalytic deposition and then polish and inspect the inside surface using optical device processes. The surface of the nozzle was coated with a nickel-phosphorous alloy of sufficient hardness and corrosion resistance to improve the durability. Due to plating defects that were clearly process related and not inherent, the final polished part was less than the desired quality. Surface finishing processes and lapping media were identified which produced a submicron surface finish on the interior plated surface. Defects apparently manifested by the first plating attempt were repaired using a small brush plating process demonstrating that individual small defects can be repaired. Measurement and analysis by profilometry demonstrated that quantitative control of the surface can be achieved. Rood, Robert and Griffith, Charles and Engelhaupt, Darell and Cernosek, John Marshall Space Flight Center...
