Fluid Mechanics, Drag Reduction and Advanced Configuration Aeronautics
Author | : Dennis M. Bushnell |
Publisher | : |
Total Pages | : 24 |
Release | : 2000 |
Genre | : Aeronautics |
ISBN | : |
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Author | : Dennis M. Bushnell |
Publisher | : |
Total Pages | : 24 |
Release | : 2000 |
Genre | : Aeronautics |
ISBN | : |
Author | : National Aeronautics and Space Adm Nasa |
Publisher | : Independently Published |
Total Pages | : 36 |
Release | : 2018-09-27 |
Genre | : Science |
ISBN | : 9781724111579 |
This paper discusses Advanced Aircraft configurational approaches across the speed range, which are either enabled, or greatly enhanced, by clever Flow Control. Configurations considered include Channel Wings with circulation control for VTOL (but non-hovering) operation with high cruise speed, strut-braced CTOL transports with wingtip engines and extensive ('natural') laminar flow control, a midwing double fuselage CTOL approach utilizing several synergistic methods for drag-due-to-lift reduction, a supersonic strut-braced configuration with order of twice the L/D of current approaches and a very advanced, highly engine flow-path-integrated hypersonic cruise machine. This paper indicates both the promise of synergistic flow control approaches as enablers for 'Revolutions' in aircraft performance and fluid mechanic 'areas of ignorance' which impede their realization and provide 'target-rich' opportunities for Fluids Research. Bushnell, Dennis M. Langley Research Center NASA/TM-2000-210646, NAS 1.15:210646, L-18055
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 | : |
Publisher | : AIAA |
Total Pages | : 542 |
Release | : 1990 |
Genre | : Boundary layer |
ISBN | : 9781600863783 |
Author | : Feng-Chen Li |
Publisher | : John Wiley & Sons |
Total Pages | : 233 |
Release | : 2012-01-10 |
Genre | : Science |
ISBN | : 1118181115 |
Turbulent drag reduction by additives has long been a hot research topic. This phenomenon is inherently associated with multifold expertise. Solutions of drag-reducing additives are usually viscoelastic fluids having complicated rheological properties. Exploring the characteristics of drag-reduced turbulent flows calls for uniquely designed experimental and numerical simulation techniques and elaborate theoretical considerations. Pertinently understanding the turbulent drag reduction mechanism necessities mastering the fundamentals of turbulence and establishing a proper relationship between turbulence and the rheological properties induced by additives. Promoting the applications of the drag reduction phenomenon requires the knowledge from different fields such as chemical engineering, mechanical engineering, municipal engineering, and so on. This book gives a thorough elucidation of the turbulence characteristics and rheological behaviors, theories, special techniques and application issues for drag-reducing flows by surfactant additives based on the state-of-the-art of scientific research results through the latest experimental studies, numerical simulations and theoretical analyses. Covers turbulent drag reduction, heat transfer reduction, complex rheology and the real-world applications of drag reduction Introduces advanced testing techniques, such as PIV, LDA, and their applications in current experiments, illustrated with multiple diagrams and equations Real-world examples of the topic’s increasingly important industrial applications enable readers to implement cost- and energy-saving measures Explains the tools before presenting the research results, to give readers coverage of the subject from both theoretical and experimental viewpoints Consolidates interdisciplinary information on turbulent drag reduction by additives Turbulent Drag Reduction by Surfactant Additives is geared for researchers, graduate students, and engineers in the fields of Fluid Mechanics, Mechanical Engineering, Turbulence, Chemical Engineering, Municipal Engineering. Researchers and practitioners involved in the fields of Flow Control, Chemistry, Computational Fluid Dynamics, Experimental Fluid Dynamics, and Rheology will also find this book to be a much-needed reference on the topic.
Author | : E. Coustols |
Publisher | : Springer Science & Business Media |
Total Pages | : 183 |
Release | : 2012-12-06 |
Genre | : Technology & Engineering |
ISBN | : 9400921594 |
Proceedings of the 4th European Drag Reduction Meeting
Author | : A. Gyr |
Publisher | : Springer Science & Business Media |
Total Pages | : 243 |
Release | : 2013-03-09 |
Genre | : Technology & Engineering |
ISBN | : 9401712956 |
Drag Reduction of Turbulent Flows by Additives is the first treatment of the subject in book form. The treatment is extremely broad, ranging from physicochemical to hydromechanical aspects. The book shows how fibres, polymer molecules or surfactants at very dilute concentrations can reduce the drag of turbulent flow, leading to energy savings. The dilute solutions are considered in terms of the physical chemistry and rheology, and the properties of turbulent flows are presented in sufficient detail to explain the various interaction mechanisms. Audience: Those active in fundamental research on turbulence and those seeking to apply the effects described. Fluid mechanical engineers, rheologists, those interested in energy saving methods, or in any other application in which the flow rate in turbulent flow should be increased.
Author | : Jinjun Wang |
Publisher | : Cambridge University Press |
Total Pages | : 293 |
Release | : 2019 |
Genre | : Science |
ISBN | : 1107161568 |
Master the theory, applications and control mechanisms of flow control techniques.
Author | : Rudibert King |
Publisher | : Springer Science & Business Media |
Total Pages | : 417 |
Release | : 2010-04-06 |
Genre | : Technology & Engineering |
ISBN | : 364211735X |
The interest in the field of active flow control (AFC) is steadily increasing. In - cent years the number of conferences and special sessions devoted to AFC org- ized by various institutions around the world continuously rises. New advanced courses for AFC are offered by the American Institute of Aeronautics and Ast- nautics (AIAA), the European Research Community on Flow, Turbulence and Combustion (ERCOFTAC), the International Centre for Mechanical Sciences (CISM), the von Karman Institute for Fluid Dynamics (VKI), to name just a few. New books on AFC are published by prominent colleagues of our field and even a new periodical, the ‘International Journal of Flow Control’, appeared. Despite these many activities in AFC it was felt that a follow-up of the highly successful ‘ACTIVE FLOW CONTROL’ Conference held in Berlin in 2006 was appropriate. As in 2006, ‘ACTIVE FLOW CONTROL II’ consisted only of invited lectures. To sti- late multidisciplinary discussions between experimental, theoretical and numerical fluid dynamics, aerodynamics, turbomachinary, mathematics, control engineering, metrology and computer science parallel sessions were excluded. Unfortunately, not all of the presented papers made it into this volume. As the preparation and printing of a book takes time and as this volume should be available at the conf- ence, the Local Organizing Committee had to set up a very ambitious time sch- ule which could not be met by all contributors.
Author | : C. Sinclair Wells |
Publisher | : Springer |
Total Pages | : 497 |
Release | : 2013-12-20 |
Genre | : Technology & Engineering |
ISBN | : 1489955798 |