A History Of Suction Type Laminar Flow Control With Emphasis On Flight Research
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A History of Suction type Laminar flow Control with Empahsis i e Emphasis on Flight Research
Author | : Albert L. Braslow |
Publsiher | : Unknown |
Total Pages | : 90 |
Release | : 1999 |
Genre | : Aeronautics |
ISBN | : UIUC:30112041300119 |
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A History of Suction type Laminar flow Control with Empahsis sic on Flight Research
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Author | : Albert L. Braslow,United States. National Aeronautics and Space Administration,Hugh L. Dryden Flight Research Center |
Publsiher | : Unknown |
Total Pages | : 79 |
Release | : 1999 |
Genre | : Fluid dynamics |
ISBN | : OCLC:814403486 |
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"This monograph presents a history of suction-type laminar-flow-control re- search in the National Advisory Commit tee for Aeronautics and its successor organization, the National Aeronautics and Space Administration, plus selected other organizations, with an emphasis on flight research. Laminar-flow control is a technology that offers the potential for improvements in aircraft fuel usage, range or endurance that far exceed any known single aeronautical technology. For transport-type airplanes, e.g., the fuel burned might be decreased a phenomenal 30 percent. Fuel reduction will not only help conserve the earth's limited supply of petroleum but will also reduce engine emissions and, therefore, air pollution. In addition, lower fuel usage will reduce the operating costs of commercial airplanes at least eight percent, depending upon the cost of the fuel and, therefore, will curtail ticket prices for air travel. Laminar-flow control is also the only aeronautical technology that offers the capability of designing a transport airplane that can fly nonstop without refueling from anywhere in the world to anywhere else in the world or that can remain aloft without refueling for approximately 24 hours. These enormous performance improvements that are potentially available for commercial or military applications, therefore, have made the concept the "pot of gold at the end of the rainbow" for aeronautical researchers."--P. 1.
A History of Suction Type Laminar Flow Control with Emphasis on Flight Research
Author | : Albert Braslow |
Publsiher | : CreateSpace |
Total Pages | : 86 |
Release | : 2012-07-13 |
Genre | : Electronic Book |
ISBN | : 1478239530 |
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Laminar-flow control is an area of aeronautical research that has a long history at NASA's Langley Research Center, Dryden Flight Research Center, their predecessor organizations, and elsewhere. In this monograph, Albert L. Braslow, who spent much of his career at Langley working with this research, presents a history of that portion of laminar-flow technology known as active laminar-flow control, which employs suction of a small quantity of air through airplane surfaces. This important technique offers the potential for significant reduction in drag and, thereby, for large increases in range or reductions in fuel usage for aircraft. For transport aircraft, the reductions in fuel consumed as a result of laminar-flow control may equal 30 percent of present consumption.
Advanced Aircraft Design
Author | : Egbert Torenbeek |
Publsiher | : John Wiley & Sons |
Total Pages | : 412 |
Release | : 2013-05-28 |
Genre | : Technology & Engineering |
ISBN | : 9781118568095 |
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Although the overall appearance of modern airliners has not changed a lot since the introduction of jetliners in the 1950s, their safety, efficiency and environmental friendliness have improved considerably. Main contributors to this have been gas turbine engine technology, advanced materials, computational aerodynamics, advanced structural analysis and on-board systems. Since aircraft design became a highly multidisciplinary activity, the development of multidisciplinary optimization (MDO) has become a popular new discipline. Despite this, the application of MDO during the conceptual design phase is not yet widespread. Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes presents a quasi-analytical optimization approach based on a concise set of sizing equations. Objectives are aerodynamic efficiency, mission fuel, empty weight and maximum takeoff weight. Independent design variables studied include design cruise altitude, wing area and span and thrust or power loading. Principal features of integrated concepts such as the blended wing and body and highly non-planar wings are also covered. The quasi-analytical approach enables designers to compare the results of high-fidelity MDO optimization with lower-fidelity methods which need far less computational effort. Another advantage to this approach is that it can provide answers to “what if” questions rapidly and with little computational cost. Key features: Presents a new fundamental vision on conceptual airplane design optimization Provides an overview of advanced technologies for propulsion and reducing aerodynamic drag Offers insight into the derivation of design sensitivity information Emphasizes design based on first principles Considers pros and cons of innovative configurations Reconsiders optimum cruise performance at transonic Mach numbers Advanced Aircraft Design: Conceptual Design, Analysis and Optimization of Subsonic Civil Airplanes advances understanding of the initial optimization of civil airplanes and is a must-have reference for aerospace engineering students, applied researchers, aircraft design engineers and analysts.
The Wind and Beyond The ascent of the airplane
Author | : James R. Hansen |
Publsiher | : Unknown |
Total Pages | : 760 |
Release | : 2003 |
Genre | : Aerodynamics |
ISBN | : PURD:32754081440855 |
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The Wind and Beyond
Author | : James R. Hansen,NASA History Office |
Publsiher | : www.Militarybookshop.CompanyUK |
Total Pages | : 776 |
Release | : 2003 |
Genre | : Political Science |
ISBN | : NASA:31769000641392 |
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Volume 1 relates the story of the invention of the airplane by the Wright brothers and the creation of the original aeronautical research establishment in the United States.
The Wind and Beyond
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 776 |
Release | : 2003 |
Genre | : Aerodynamics |
ISBN | : MINN:30000007889508 |
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NASA s Contributions to Aeronautics Aerodynamics structures propulsion controls
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 980 |
Release | : 2010 |
Genre | : Aeronautics |
ISBN | : UCSD:31822036341055 |
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Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.