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Author : Simha S. Dodbele
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (317 download)
Download or read book Design Optimization of Natural Laminar Flow Bodies in Compressible Flow written by Simha S. Dodbele and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722153588
Total Pages : 24 pages
Book Rating : 4.1/5 (535 download)
Download or read book Design Optimization of Natural Laminar Flow Bodies in Compressible Flow written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: An optimization method has been developed to design axisymmetric body shapes such as fuselages, nacelles, and external fuel tanks with increased transition Reynolds numbers in subsonic compressible flow. The new design method involves a constraint minimization procedure coupled with analysis of the inviscid and viscous flow regions and linear stability analysis of the compressible boundary-layer. In order to reduce the computer time, Granville's transition criterion is used to predict boundary-layer transition and to calculate the gradients of the objective function, and linear stability theory coupled with the e(exp n)-method is used to calculate the objective function at the end of each design iteration. Use of a method to design an axisymmetric body with extensive natural laminar flow is illustrated through the design of a tiptank of a business jet. For the original tiptank, boundary layer transition is predicted to occur at a transition Reynolds number of 6.04 x 10(exp 6). For the designed body shape, a transition Reynolds number of 7.22 x 10(exp 6) is predicted using compressible linear stability theory coupled with the e(exp n)-method. Dodbele, Simha S. Unspecified Center NAS1-18585; RTOP 505-59-10-02...
Author : Simha S. Dodbele
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (126 download)
Download or read book Design Optimization of Natural Laminar Flow Bodies in Compressible Flow written by Simha S. Dodbele and published by . This book was released on 1993 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: An optimization method has been developed to design axisymmetric body shapes such as fuselages, nacelles, and external fuel tanks with increased transition Reynolds numbers in subsonic compressible flow. The new design method involves a constraint minimization procedure coupled with analysis of the inviscid and viscous flow regions and linear stability analysis of the compressible boundary-layer. In order to reduce the computer time, Granville's transition criterion is used to predict boundary-layer transition and to calculate the gradients of the objective function, and linear stability theory coupled with the e(exp n)-method is used to calculate the objective function at the end of each design iteration. Use of a method to design an axisymmetric body with extensive natural laminar flow is illustrated through the design of a tiptank of a business jet. For the original tiptank, boundary layer transition is predicted to occur at a transition Reynolds number of 6.04 x 10(exp 6). For the designed body shape, a transition Reynolds number of 7.22 x 10(exp 6) is predicted using compressible linear stability theory coupled with the e(exp n)-method.
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ISBN 13 :
Total Pages : 584 pages
Book Rating : 4.:/5 (3 download)
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ISBN 13 :
Total Pages : 278 pages
Book Rating : 4.X/5 (4 download)
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ISBN 13 :
Total Pages : 636 pages
Book Rating : 4.:/5 (318 download)
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ISBN 13 :
Total Pages : 984 pages
Book Rating : 4.:/5 (319 download)
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Total Pages : 530 pages
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Total Pages : 590 pages
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Author : American Institute of Aeronautics and Astronautics
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ISBN 13 :
Total Pages : 1184 pages
Book Rating : 4.F/5 ( download)
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2007 with total page 1184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 974 pages
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Total Pages : 538 pages
Book Rating : 4.3/5 (91 download)
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ISBN 13 :
Total Pages : 436 pages
Book Rating : 4.3/5 (91 download)
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Total Pages : 686 pages
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Download or read book Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 300) written by and published by . This book was released on 1994 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : International Council of the Aeronautical Sciences. Congress
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ISBN 13 :
Total Pages : 1116 pages
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Author : Ajoy Kumar Kundu
Publisher : John Wiley & Sons
ISBN 13 : 1119500281
Total Pages : 1052 pages
Book Rating : 4.1/5 (195 download)
Download or read book Conceptual Aircraft Design written by Ajoy Kumar Kundu and published by John Wiley & Sons. This book was released on 2019-04-08 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a Comprehensive Introduction to Aircraft Design with an Industrial Approach This book introduces readers to aircraft design, placing great emphasis on industrial practice. It includes worked out design examples for several different classes of aircraft, including Learjet 45, Tucano Turboprop Trainer, BAe Hawk and Airbus A320. It considers performance substantiation and compliance to certification requirements and market specifications of take-off/landing field lengths, initial climb/high speed cruise, turning capability and payload/range. Military requirements are discussed, covering some aspects of combat, as is operating cost estimation methodology, safety considerations, environmental issues, flight deck layout, avionics and more general aircraft systems. The book also includes a chapter on electric aircraft design along with a full range of industry standard aircraft sizing analyses. Split into two parts, Conceptual Aircraft Design: An Industrial Approach spends the first part dealing with the pre-requisite information for configuring aircraft so that readers can make informed decisions when designing vessels. The second part devotes itself to new aircraft concept definition. It also offers additional analyses and design information (e.g., on cost, manufacture, systems, role of CFD, etc.) integral to conceptual design study. The book finishes with an introduction to electric aircraft and futuristic design concepts currently under study. Presents an informative, industrial approach to aircraft design Features design examples for aircraft such as the Learjet 45, Tucano Turboprop Trainer, BAe Hawk, Airbus A320 Includes a full range of industry standard aircraft sizing analyses Looks at several performance substantiation and compliance to certification requirements Discusses the military requirements covering some combat aspects Accompanied by a website hosting supporting material Conceptual Aircraft Design: An Industrial Approach is an excellent resource for those designing and building modern aircraft for commercial, military, and private use.
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ISBN 13 :
Total Pages : 1204 pages
Book Rating : 4.:/5 (89 download)
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