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Author : J. W.. Slooff
Publisher :
ISBN 13 : 9789283515241
Total Pages : 4 pages
Book Rating : 4.5/5 (152 download)
Download or read book Aircraft Drag Prediction and Reduction written by J. W.. Slooff and published by . This book was released on 1986 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. Deconinck
Publisher :
ISBN 13 :
Total Pages : 742 pages
Book Rating : 4.F/5 ( download)
Download or read book CFD-based Aircraft Drag Prediction and Reduction written by H. Deconinck and published by . This book was released on 2003 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Drag Prediction and Reduction written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Drag Prediction and Reduction written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (227 download)
Download or read book Aircraft Drag Prediction and Reduction. Addendum 1 written by and published by . This book was released on 1986 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accurate prediction of aircraft aerodynamic drag is a generally recognized and respected problem. So is the accurate measurement of drag in the wind tunnel that, eventually, forms the basis for full scale drag prediction. In the past 15 years Computational Fluid Dynamics (CFD) has emerged as an additional and complementary tool for aerodynamic design and analysis. The purpose of this lecture is to review and comment on its role as a drag prediction and analysis tool. The aerodynamic design process of aircraft is characterized by a sequence of design and analysis cycles. In each cycle a (further) reduction of drag will, generally, be one, but not the only objective. Identification of the source of an unacceptably or undesirably high drag level or drag variation with lift or Mach number is a prerequisite for a successful drag reduction program. Identification of drag sources may follow different approaches. The classical or phenomenological one is based on the availability of overall force (wind tunnel) data only, in combination with simple, semi-empirical theory. CFD, as we shall see later, offers possibilities for a more physically/analytically oriented approach in which the various contributions to drag are distinguished by the underlying physical mechanisms rather than by the observed aerodynamic force variation phenomena. It will also be demonstrated that, in spite of its current shortcomings, CFD is a powerful tool for drag diagnostics. The final part of the lecture contains a discussion on computational drag minimization.
Download or read book Aircraft Drag Prediction and Reduction Computational Drag Analyses and Minimization; Mission Impossible? (addendum 1). written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. W. Slooff
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.3/5 (243 download)
Download or read book Aircraft Drag Prediction and Reduction written by J. W. Slooff and published by . This book was released on 1986 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce H. Carmichael
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.0/5 ( download)
Download or read book Personal Aircraft Drag Reduction written by Bruce H. Carmichael and published by . This book was released on 2000 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : NATO. ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT.
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (131 download)
Download or read book AIRCRAFT DRAG PREDICTION AND REDUCTION. written by NATO. ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT. and published by . This book was released on with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Simeon Andrew Ning
Publisher : Stanford University
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.F/5 ( download)
Download or read book Aircraft Drag Reduction Through Extended Formation Flight written by Simeon Andrew Ning and published by Stanford University. This book was released on 2011 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Formation flight has the potential to significantly reduce the fuel consumption of long range flights, even with existing aircraft. This research explores a safer approach to formation flying of transport aircraft, which we term extended formation flight. Extended formations take advantage of the persistence of cruise wakes and extend the streamwise separation between the aircraft by at least five wingspans. Classical aerodynamic theory suggests that the total induced drag of the formation should not change as the streamwise separation is increased, but the large separation distances of extended formation flight violate the simple assumptions of these theorems. At large distances, considerations such as wake rollup, atmospheric effects on circulation decay, and vortex motion become important to consider. We first examine the wake rollup process in the context of extended formations and develop an appropriate physics-based model. Using this model, this dissertation addresses three aspects of formation flight: longitudinally extended formations, compressibility effects, and formations of heterogeneous aircraft. Uncertainty analysis is used to investigate the induced drag savings of extended formations in the presence of variation in atmospheric properties, limitations of positioning accuracy, and uncertainty in model parameters. Next, the methodology is integrated with an Euler solver to assess the impact of compressibility while flying in formation. Finally, we examine the important considerations for optimally arranging formations of non-identical aircraft.
Author : NATO. ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT.
Publisher :
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4.:/5 (131 download)
Download or read book AIRCRAFT DRAG PREDICTION AND REDUCTION - COMPUTATIONAL DRAG ANALYSIS AND MINIMIZATION; MISSION IMPOSSIBLE?. written by NATO. ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT. and published by . This book was released on with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mohsen Jahanmiri
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659336423
Total Pages : 72 pages
Book Rating : 4.3/5 (364 download)
Download or read book Aircraft Drag Reduction: An Overview written by Mohsen Jahanmiri and published by LAP Lambert Academic Publishing. This book was released on 2013-01 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aircraft drag reduction is a great challenge but there is certainly room for improvements. The drag breakdown of a civil transport aircraft shows that the skin friction drag and the lift-induced drag constitute the two main sources of drag, approximately one half and one third of the total drag for a typical long range aircraft at cruise conditions. This is why specific research on this topics have been initiated and it seems that Hybrid Laminar Flow technology and innovative wing tip devices offer the greatest potential. The aim of this review manuscript is to highlight the state of the art in aeronautical drag reduction, and also describe several emerging drag-reduction approaches that are either active or reactive/interactive.
Author :
Publisher : AIAA
ISBN 13 : 9781600863783
Total Pages : 542 pages
Book Rating : 4.8/5 (637 download)
Download or read book Viscous Drag Reduction in Boundary Layers written by and published by AIAA. This book was released on 1990 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter Thiede
Publisher : Springer Science & Business Media
ISBN 13 : 3540453598
Total Pages : 382 pages
Book Rating : 4.5/5 (44 download)
Download or read book Aerodynamic Drag Reduction Technologies written by Peter Thiede and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: ------------------------------------------------------------ This volume contains the Proceedings of the CEAS/DragNet European Drag Reduction Conference held on 19-21 June 2000 in Potsdam, Germany. This conference, succeeding the European Fora on Laminar Flow Technology 1992 and 1996, was initiated by the European Drag Reduction Network (DragNet) and organised by DGLR under the auspice of CEAS. The conference addressed the recent advances in all areas of drag reduction research, development, validation and demonstration including laminar flow technology, adaptive wing concepts, turbulent and induced drag reduction, separation control and supersonic flow aspects. This volume which comprises more than 40 conference papers is of particular interest to engineers, scientists and students working in the aeronautics industry, research establishments or academia.
Author : Jan Roskam
Publisher :
ISBN 13 :
Total Pages : 468 pages
Book Rating : 4.:/5 (31 download)
Download or read book Proceedings of the NASA·Industry·University General Aviation Drag Reduction Workshop written by Jan Roskam and published by . This book was released on 1984 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jerry N. Hefner
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Concepts for Aircraft Drag Reduction written by Jerry N. Hefner and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas R. Yechout
Publisher : AIAA
ISBN 13 : 9781600860782
Total Pages : 666 pages
Book Rating : 4.8/5 (67 download)
Download or read book Introduction to Aircraft Flight Mechanics written by Thomas R. Yechout and published by AIAA. This book was released on 2003 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a 15-year successful approach to teaching aircraft flight mechanics at the US Air Force Academy, this text explains the concepts and derivations of equations for aircraft flight mechanics. It covers aircraft performance, static stability, aircraft dynamics stability and feedback control.
