New results in numerical and experimental fluid mechanics : contributions to the 10th AG STAB/DGLR Symposium, Braunschweig, Germany 1996

This volume contains the papers of the 10th AG STAB (German Aerospace Aerodynamics Association). In this association all those scientists and engineers from universities, research-establishments and industry are involved, who are doing research and project work in numerical and experimental fluid mechanics and aerodynamics for aerospace and other applications. Many of the contributions are giving first results from the'Luftfahrtforschungsprogramm der Bundesregierung (German Aeronautical Research Program) 1995-1998'. Some of the papers report on work sponsored by the Deutsche Forschungsgemeinschaft, DFG, which also was presented at the symposium. The volume gives a broad overview over the ongoing work in this field in Germany. Front Matter....Pages i-xii Cooperation Project Aeronautical Research....Pages 1-6 Reduction of Aerodynamic Drag (RaWid) in the national Research and Technology Programme for Aeronautics Status after the First Year of the Programme....Pages 7-14 National CFD Project MEGAFLOW....Pages 15-23 Laminar-Turbulent Transition Research at DLR....Pages 24-35 The Development of Advanced Internal Balances for Cryogenic and Conventional Tunnels....Pages 36-47 Parallel Numerical Airplane Wing Design....Pages 48-55 Experiments on Active Control of Tollmien—Schlichting Waves on a Wing....Pages 56-63 Stability Analysis of two- and three-dimensional Boundary Layer Flows with varied Wall Temperatures....Pages 64-70 Heat Loads During Hypersonic -Flight-Conditions at Low Altitudes: Computations and Free-Flight Investigations of Several Testdomes....Pages 71-78 Experimental Studies of the Turbulent Flow Structure of Leading—Edge Vortices....Pages 79-86 Density Measurements on a Delta Wing by Means of Planar Intensity Distribution of Rayleigh Scattered Laser Light (PIRS) in the 1m × 1m Transonic Wind Tunnel Göttingen (TWG)....Pages 87-94 Close Coupling of Very High-Bypass Engines in Combination with Take-Off / Landing Configurations....Pages 95-102 Numerical investigation of boundary-layer instabilities over a blunt flat plate at angle of attack in supersonic flow....Pages 103-110 Application of Two-Parameter Turbulence Models to the Prediction of Two-Dimensional Free Turbulent Shear Flows....Pages 111-118 Numerical and Experimental Investigations of Flow Induced by Harmonic Motion of a Circular Cylinder....Pages 119-126 Status and some new results obtained in the HEG....Pages 127-134 Mesh Modification Techniques for Navier-Stokes Meshes....Pages 135-142 Flight experiment guidance technique for research on transition with Grob G109 aircraft of the Technische Hochschule Darmstadt....Pages 143-150 Alternative drag calculations from off body flow quantities using the FLOWer code....Pages 151-156 Numerical Simulation of the X-31A Flow Characteristics....Pages 157-164 Experimental investigation of active (dynamic) control of hydrodynamic instability in a two-dimensional boundary layer....Pages 165-172 Simulation of Unsteady, Three-Dimensional, Viscous Flows Using a Dual- Time Stepping Method....Pages 173-180 Unsteady boundary layer separation on swept and unswept wings in sinusoidal dynamic stall motion....Pages 181-188 Numerical Aerodynamic Optimization Study for a Supersonic Aircraft....Pages 189-196 Investigation on a Transonic Transport Aircraft Wing with an Optimized Trailing Edge....Pages 197-204 Calibration of Codes for Computing Bi-Conic Flowfields....Pages 205-212 Flow visualization and application of Particle-Image Velocimetry to the hypersonic configuration ELAC 1....Pages 213-220 Simulation of the Flow Past a Circular Cylinder Using Local Block Refinement....Pages 221-228 Secondary Instabilities in a Laminar Separation Bubble....Pages 229-236 Flexibility and Efficiency of a Transport-Equation Turbulence Model for Three-Dimensional Flow....Pages 237-244 Visualization of High-Speed Boundary-Layer Transition with FPA Infrared Technique....Pages 245-252 Application of PIV in the Large Low Speed Facility of DNW....Pages 253-258 Refined Streamline Patterns for Unsteady Boundary Layer Separation....Pages 259-266 Surface Inclination and Heat Transfer Methods for Reacting Hypersonic Flow in Thermochemical Equilibrium....Pages 267-274 Techniques to enhance reliability and efficiency of flow calculations on unstructured grids....Pages 275-282 Design of a Laminar-Glove for the A340 and First Results of a High-Speed Wind-Tunnel Test....Pages 283-287 Investigations of Hypersonic Intakes....Pages 288-295 Boundary Layer Bleed in Hypersonic Inlets....Pages 296-303 High Resolution Measurement of Turbulence in Axial Compressors....Pages 304-310 The Preliminary Aircraft Design and Optimization Program for Supersonic Commercial Transport Aircraft PrADO-Sup....Pages 311-318 Design of a laminar wing for a commuter airplane using a 3D-design method....Pages 319-326 Impact of Planform Geometry on Waverider Aerodynamics....Pages 327-334 Visualization of the Spatial-Temporal Instability Wave Development in a Laminar Boundary Layer by Means of a Heated PVDF Sensor Array....Pages 335-342 In-Flight Research on Boundary Layer Transition....Pages 343-350 On subcritical breakdown to turbulence in swept wing attachment line boundary layer flows....Pages 351-358 Numerical simulation of the vortex sheet roll-up behind wings with different lift distributions....Pages 359-366 Turbulent flow in idealized Czochralski crystal growth configurations....Pages 367-380 Euler calculations for flows around longitudinally accelerated profiles and profiles in shear flow....Pages 381-388 Numerical Investigation of the Flow Around a Fuselage-Canard Configuration for a Long Range High Capacity Aircraft....Pages 389-396 Transition Process of a Wave Train in a Laminar Boundary Layer....Pages 397-404 Wind Tunnel and Water Tunnel Studies of Vertical Fin Buffeting....Pages 405-412 Experimental Investigations of Transition Development in Attached Boundary Layers and Laminar Separation Bubbles....Pages 413-420 On-Line Data Processing for the DLR-F9 Windtunnel Experiment....Pages 421-426 Back Matter....Pages 427-427 This volume contains the contributions to the 10th DGLR I AG ST AB-Symposium held at the German Aerospace Research Establishment (DLR) -Braunschweig Research Centre - November, 11 to 13, 1996. AG STAB is the German Aerospace AerodynapIics Association, founded at the end of the 70', while DGLR is the German Society for Aeronautics and Astronautics (Deutsche Gesellschaft für Luft- und Raumfahrt, LilienthaI Oberth Gesellschaft). In the AG STAB German scientists and engineers from universities, research-establishments and industries are involved, who are doing research and project work in numerical and experimental fluidmechanics and aerodynamics for aerospace and other applications. About 20 years ago it became obvious for this community that a joint effort of members of universities, the DLR and industry was necessary to counter-act declining budgets in the field. It was decided to approach high-level persons in industry, ministries and the parliament for help to shift the trend with its negative effects for research and industry. From the begin it was clear that an effort should be built around a central theme. ''Flow with Separation" became the topic of the AG STAB (Arbeitsgemeinschaft Strömung mit Ablösung), which developed fast into a lively association, with, however, a larger scope than just flow with separation