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Design And Performance Calculations Of A Propeller For Very High Altitude Flight Degree Awarded By Case Western Univ
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781723015083 Total Pages :132 pages Book Rating :4.0/5 (15 download)
Book Synopsis Design and Performance Calculations of a Propeller for Very High Altitude Flight. Degree Awarded by Case Western Univ. by : National Aeronautics and Space Administration (NASA)
Download or read book Design and Performance Calculations of a Propeller for Very High Altitude Flight. Degree Awarded by Case Western Univ. written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reported here is a design study of a propeller for a vehicle capable of subsonic flight in Earth's stratosphere. All propellers presented were required to absorb 63.4 kW (85 hp) at 25.9 km (85,000 ft) while aircraft cruise velocity was maintained at Mach 0.40. To produce the final design, classic momentum and blade-element theories were combined with two and three-dimensional results from the Advanced Ducted Propfan Analysis Code (ADPAC), a numerical Navier-Stokes analysis code. The Eppler 387 airfoil was used for each of the constant section propeller designs compared. Experimental data from the Langley Low-Turbulence Pressure Tunnel was used in the strip theory design and analysis programs written. The experimental data was also used to validate ADPAC at a Reynolds numbers of 60,000 and a Mach number of 0.20. Experimental and calculated surface pressure coefficients are compared for a range of angles of attack. Since low Reynolds number transonic experimental data was unavailable, ADPAC was used to generate two-dimensional section performance predictions for Reynolds numbers of 60,000 and 100,000 and Mach numbers ranging from 0.45 to 0.75. Surface pressure coefficients are presented for selected angles of attack. in addition to the variation of lift and drag coefficients at each flow condition. A three-dimensional model of the final design was made which ADPAC used to calculated propeller performance. ADPAC performance predictions were compared with strip-theory calculations at design point. Propeller efficiency predicted by ADPAC was within 1.5% of that calculated by strip theory methods, although ADPAC predictions of thrust, power, and torque coefficients were approximately 5% lower than the strip theory results. Simplifying assumptions made in the strip theory account for the differences seen. Koch, L. Danielle Glenn Research Center PROPELLERS; PROPELLER EFFICIENCY; PERFORMANCE PREDICTION; LOW REYNOLDS NUMBER; AERODYNAMIC COEFFICIENTS; NAVIER-STOKES EQUATION; N...
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author :John David Anderson Publisher :McGraw-Hill Science, Engineering & Mathematics ISBN 13 : Total Pages :602 pages Book Rating :4.:/5 (319 download)
Book Synopsis Aircraft Performance & Design by : John David Anderson
Download or read book Aircraft Performance & Design written by John David Anderson and published by McGraw-Hill Science, Engineering & Mathematics. This book was released on 1999 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Balancing technical material with important historical aspects of the invention and design of aeroplanes, this book develops aircraft performance techniques from first principles and applies them to real aeroplanes.
Author :American Society of Mechanical Engineers. Aviation and Space Division Publisher : ISBN 13 : Total Pages :204 pages Book Rating :4.F/5 ( download)
Book Synopsis Preprinted Papers and Program, Aeronautic and Hydraulic Divisions, American Society of Mechanical Engineers, Summer Meeting, June 19, 20, 21, 1934, University of California, Stanford University by : American Society of Mechanical Engineers. Aviation and Space Division
Download or read book Preprinted Papers and Program, Aeronautic and Hydraulic Divisions, American Society of Mechanical Engineers, Summer Meeting, June 19, 20, 21, 1934, University of California, Stanford University written by American Society of Mechanical Engineers. Aviation and Space Division and published by . This book was released on 1934 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering written by and published by . This book was released on 1908 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance of Light Aircraft by : John T. Lowry
Download or read book Performance of Light Aircraft written by John T. Lowry and published by AIAA. This book was released on 1999 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pilots, aviation students, kitplane builders, aircraft fleet operators and aeronautical engineers can all determine how their propeller-driven airplanes will perform, under any conditions, by using the step-by-step bootstrap approach introduced in this book. A few routine flying manoeuvres (climbs, glides, a level speed run) will give the necessary nine numbers. High-school level calculations then give performance numbers with much greater detail and accuracy than many other methods - for the reader's individual aircraft.
Book Synopsis Dressing for Altitude by : Dennis R. Jenkins
Download or read book Dressing for Altitude written by Dennis R. Jenkins and published by Government Printing Office. This book was released on 2012-08-27 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Since its earliest days, flight has been about pushing the limits of technology and, in many cases, pushing the limits of human endurance. The human body can be the limiting factor in the design of aircraft and spacecraft. Humans cannot survive unaided at high altitudes. There have been a number of books written on the subject of spacesuits, but the literature on the high-altitude pressure suits is lacking. This volume provides a high-level summary of the technological development and operational use of partial- and full-pressure suits, from the earliest models to the current high altitude, full-pressure suits used for modern aviation, as well as those that were used for launch and entry on the Space Shuttle. The goal of this work is to provide a resource on the technology for suits designed to keep humans alive at the edge of space."--NTRS Web site.
Download or read book Flying Magazine written by and published by . This book was released on 1966-11 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Engineer written by and published by . This book was released on 1919 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Journal written by and published by . This book was released on 1928 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 7, no.7, July 1924, contains papers prepared by Canadian engineers for the first World power conference, July, 1924.
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1970-12 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1972-05-25 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strengthening Forensic Science in the United States by : National Research Council
Download or read book Strengthening Forensic Science in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-07-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1991 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Army and Navy Register written by and published by . This book was released on 1927 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flying Magazine written by and published by . This book was released on 2002-08 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA SP. written by and published by . This book was released on 1962 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
