Aerodynamic Drag Reduction Technologies

Session 1 The Challenge of Drag Reduction.- Perspectives for the Future of Aeronautics Research (invited).- The Importance of Aerodynamics in the Development of Commercially Successful Transport Aircraft (invited).- Drag Reduction: A Major Task for Research (invited).- Session 2 Achievements of Technology Demonstration.- Airbus A320 HLF Fin Flight Tests (invited).- Lessons Learned from Dassault's Falcon 900 HLF Demonstrator (invited).- Flight Testing of a HLF Wing with Suction, Ice-Protection and Anti-Contamination Systems.- Session 3 HLF Design & Suction System Integration.- New Aerodynamic Approach to Suction System Design.- Retrofit Studies based on Airbus A310 for HLFC Application on Aircrafts.- Light Transmission Control Technique and Correlation with Pressure Loss Characteristics of Perforated Panels for Hybrid Laminar Flow Applications.- DNS Study of Suction Through Arrays of Holes in a 3-D Boundary-Layer Flow.- Session 4 HLF Operational Aspects.- Saab 2000 In-Service Test of Porous Surfaces for HLFC.- Flight Operational Assessment of Hybrid Laminar Flow Control (HLFC) Aircraft.- Application of HLF Technology to Civil Nacelle (invited).- Session 5 Supersonic Flow Control Aspects.- European Research to Reduce Drag for Supersonic Transport Aircraft (invited).- Attachment Line Transition in Supersonic Flow.- Laminar Design for Supersonic Civil Transport.- Session 6.1 Transition Prediction.- Linear Stability Theory Applied to Natural and Hybrid Laminar Flow Experiments.- Modern Transition Prediction Techniques Based on Adjoint Methods.- Receptivity Processes and Transition Scenarios for Swept-Wing Flows with HFL Technology.- Influence of Acoustic Excitation on 3D Boundery Layer Instabilities.- Session 6.2 HLF Experimental Techniques.- Study of Wind TunnelSimulation Methodology for HLFC Wings.- Transitional Flow Physics and Flow Control for Swept Wings: Experiments on Boundary-Layer Receptivity, Instability Excitation and HLF-Technology.- New Developments in Surface Flow Sensor Technology within the Framework of AEROMEMS.- Session 7 Realisation of Adaptive Wing Concepts.- Aspects of Shock Control and Adaptive Wing Technology (invited).- Drag Reduction on Gurney Flaps and Divergent Trailing Edges.- Next Steps Envisaged to Improve Wing Performance of Commercial Aircraft.- Session 8 Future Prospects.- Industrial Perspectives of Drag Reduction Technologies (invited).- Session 9 Turbulent Drag Reduction Methods.- Current Status and Prospects for Turbulent Flow Control (invited).- Yaw Angle Effects on Optimized Riblets.- Effects on the Resistance and on the Separation of V Shapes Passive Manipulators in a Turbulent Boundary Layer.- Session 10 Separation Control & Induced Drag Reduction.- Active Control of a Laminar Separation Bubble.- Induced Drag Reduction with the WINGGRID Device.- The Lifting System with Minimum Induced Drag.- Poster Session 1.- Assessment of the eN Method as a Transition Prediction Tool for Zero Pressure Gradient Flows with and without Boundery Layer Suction.- Active Control of Nonlinear Disturbances in 2-D Boundary Layers.- Control of the Coherent Vortical Structures of a Boundery Layer.- Novel Approaches to Combat Insect Contamination on HLFC Wings.- Evolutionary Search Algorithms for Boundary Layer Control.- Poster Session 2.- Experimental Investigations on Active and Dynamic Instability Control of Separated Turbulent Wing/Cylinder Flows.- Drag Reduction in Airfoils Using Control Devices in the Shock Wave-Boundary Layer Interaction Region.- Numerical Study of Separation Control by Movable Flaps.