CFD-based Aircraft Drag Prediction and Reduction
Author | : H. Deconinck |
Publisher | : |
Total Pages | : 742 |
Release | : 2003 |
Genre | : Drag (Aerodynamics) |
ISBN | : |
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Author | : H. Deconinck |
Publisher | : |
Total Pages | : 742 |
Release | : 2003 |
Genre | : Drag (Aerodynamics) |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 34 |
Release | : 1986 |
Genre | : |
ISBN | : |
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.
Author | : |
Publisher | : |
Total Pages | : 29 |
Release | : 1985 |
Genre | : Drag (Aerodynamics) |
ISBN | : 9789283515074 |
Author | : J. W. Slooff |
Publisher | : |
Total Pages | : 50 |
Release | : 1986 |
Genre | : Aeronautics |
ISBN | : |
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Total Pages | : |
Release | : 1985 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : AIAA |
Total Pages | : 542 |
Release | : 1990 |
Genre | : Boundary layer |
ISBN | : 9781600863783 |
Author | : Charles C. Peavey |
Publisher | : |
Total Pages | : |
Release | : 2000 |
Genre | : |
ISBN | : |
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Total Pages | : |
Release | : 1985 |
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ISBN | : |
Author | : Peter Thiede |
Publisher | : Springer Science & Business Media |
Total Pages | : 382 |
Release | : 2013-06-29 |
Genre | : Technology & Engineering |
ISBN | : 3540453598 |
------------------------------------------------------------ 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 | : J. van der Vooren |
Publisher | : |
Total Pages | : 74 |
Release | : 1994 |
Genre | : |
ISBN | : |