Drag Reduction By Shock And Boundary Layer Control: Results Of The Project Euroshock Ii. Supported By The European Union 1996-1999 (notes On Numerical Fluid Mechanics And Multidisciplinary Design)

This volume contains a thorough description of the EU-supported project EUROSHOCK II concerned with the investigation of active shock and boundary layer control to improve aircraft performance. Discussed are basic experiments, supplemented by Navier-Stokes computations, to improve and validate physical models relevant to control and the extension, validation and application of various computational methods to airfoil and wing flows with control. Furthermore described are experiments on airfoils and wings carried out to assess the aerodynamic benefits of control and to provide data for validation purposes. Finally, control applications to real aircraft and the corresponding installation penalties and mission benefits are addressed. This volume is a sequel to Vol. 56 on passive shock control. Front Matter....Pages I-XX Synopsis of the Project EUROSHOCK II....Pages 1-124 Front Matter....Pages 125-125 Introduction to the Individual Contributions....Pages 127-131 Study of Control Devices Applied to a Transonic Shock Wave/Boundary Layer Interaction....Pages 133-152 Hybrid and Active Control of Shock Wave — Turbulent Boundary Layer Interaction and Perforated Plate Transpiration Flow....Pages 153-177 Active Control of Swept Shock Wave / Boundary Layer Interactions....Pages 179-203 Numerical Investigation of Active Shock Wave and Boundary-Layer Control on Airfoils and Sheared Wings....Pages 205-235 Euler/Boundary Layer Coupling to Predict Steady and Unsteady Transonic Flows Past an Airfoil with and without Shock Control....Pages 237-254 2D Numerical Investigations of Shock and Boundary Layer Control Techniques....Pages 255-284 Prediction of Transonic Airfoil/Wing Flow and Buffet with Control Using a Time-accurate Viscous-Inviscid Interaction Approach....Pages 285-313 Steady and Unsteady Numerical NS-Calculations for the DRA 2303 Airfoil with and without Bump....Pages 315-329 An Investigation of Active, Suction, Shock and Boundary Layer Control Techniques....Pages 331-358 Experimental Investigation of the Transonic Airfoils ADIF and DA LVA-1A and the ADIF Sheared Wing with and without Control....Pages 359-381 Assessment of Shock and Boundary Layer Control Concepts for Hybrid Laminar Flow Wing Design....Pages 383-414 Assessment of Bump Control and its Application to a Long-range Turbulent-wing Aircraft....Pages 415-416 Drag Reduction and Buffet Damping by a Contour Bump Control Device and Regional-jet Application....Pages 417-431 Application of Shock and Boundary Layer Control to a Business-jet Aircraft....Pages 433-449 Back Matter....Pages 451-452 The survival of the Aeronautical Industries of Europe in the highly competitive World Aviation Market is strongly dependent on such factors as time-to-market of a new or derivative aircraft and on its manufacturing costs but also on the achievement of a competitive technological advantage by which an increased market share can be gained. Recognizing this, cooperative research is continuously encouraged and co-financed by the European Union in order to strengthen the scientific and technological base of the Aeronautical Industries thus providing - among others - the technological edge needed for survival. Corresponding targets of research within Area 3, Technologies for Transport Means, and here in particular Area 3A, Aeronautics Technologies, of the Industrial and Materials Technologies Program ( Brite -EuRam III, 1994 -1998) have been identified to be aircraft efficiency, cost effectiveness and environmental impact. Concerning aircraft efficiency - relevant to the present research - a reduction in aircraft drag of 10%, a reduction in aircraft fuel consumption of 30%, and a reduction in airframe, engine and system weight of 20% are envisaged. Meeting these objectives has, of course, also a strong positive impact on the environment. "This volume contains a thorough description of the EU-supported project EUROSHOCK II concerned with the investigation of active shock and boundary layer control to improve aircraft performance. Discussed are basic experiments, supplemented by Navier-Stokes computations, to improve and validate physical models relevant to control and the extension, validation and application of various computational methods to airfoil and wing flows with control. Furthermore described are experiments on airfoils and wings carried out to assess the aerodynamic benefits of control and to provide data for validation purposes. Finally, control applications to real aircraft and the corresponding installation penalties and mission benefits are addressed. This volume is a sequel to NNFM 56 on passive shock control."--BOOK JACKET