New Results in Numerical and Experimental Fluid Mechanics III: Contributions to the 12th STAB/DGLR Symposium Stuttgart, Germany 2000 (Notes on ... Mechanics and Multidisciplinary Design, 77)

This volume contains the papers of the 12. Symposium of the STAB (German Aerospace Aerodynamics Association). In this association, german scientists and engineers from universities, research-establishments and industry are involved, who are doing research and project work in numerical and experimental fluidmechanics and aerodynamics for aerospace and other applications. Many of the contributions give results from the "Luftfahrt- forschungsprogram der Bundesregierung (German Aeronautical Research Program)". Some of the papers report on work sponsored by the Deutsche Forschungsgemeinschaft, DFG, who were also present at the symposium. This volume gives a broad overview of the ongoing work in this field in Germany. Front Matter....Pages I-XII Front Matter....Pages 1-1 Design Work for the A3XX High-Lift-Wing....Pages 3-10 Recent Improvements in the Measurement of Aerodynamic Damping Derivatives....Pages 11-18 Calculation of Horizontal Stabilizer Efficiency with a Navier-Stokes Code....Pages 19-26 3D RANS Simulations for High-Lift Analysis of Transport Aircraft Configurations....Pages 27-34 Numerical Investigation of the Reynolds-Number-Effect on the Setting Sensitivity of a 2D High-Lift Multi-Element Airfoil....Pages 35-41 Separation Control on a High-Lift Configuration by Periodic Exitation....Pages 42-49 Numerical Investigation of the Effect of the High-Lift Configuration of a Transport Aircraft on its Vortex Wake....Pages 50-57 The Relationship Between Near- and-Far-Field of Vortex Wakes from Aircraft with High Aspect Ratio Wings....Pages 58-65 Influence of Different Flap Settings on the Hazard Posed to Following Aircraft....Pages 66-73 Numerical Simulation of Wake-Vortex Encounters Using the Chimera-Technique....Pages 74-81 Aspects of Low Speed Wind Tunnel Testing on an A400M Model with Propeller Simulation....Pages 82-91 Coupling of DLR Navier-Stokes Solver FLOWer with an e N -Database Method for Laminar-Turbulent Transition Prediction on Airfoils....Pages 92-99 Front Matter....Pages 101-101 Unsteady Measurements with the Continuously Rotating DLR-PSP-Model at the Transonic Wind Tunnel Göttingen (DNW-TWG)....Pages 103-110 Front Matter....Pages 111-111 Turbulence Modeling for Reentry-Vehicles....Pages 113-120 Computation of the Two-Dimensional Flow in SERN Nozzles....Pages 121-128 Experimental Investigation of a Hypersonic Inlet for the TSTO-Configuration ELAC....Pages 129-136 Aerodynamic Analysis of the Dual-Mode Ramjet Vehicle JAPHAR....Pages 137-144 Study of Shock–Wave/Boundary–Layer Interaction Flowfield on a 24° Ramp Model....Pages 145-152 Numerical Investigations of Small-Amplitude Disturbances in a Laminar Boundary Layer with Impinging Shock Waves....Pages 153-160 Surface Temperature Effects on Shock-Wave Boundary-Layer Interaction of Ramp Flows....Pages 161-168 Front Matter....Pages 169-169 Preliminary Results of Numerical Simulations of Elastic Panels in Transonic Flows....Pages 171-178 Front Matter....Pages 179-179 Numerical Simulation of Laminar Separation-Bubble Control....Pages 181-188 On the Structure of Turbulence in the Transition Cylinder Wake....Pages 189-196 Front Matter....Pages 197-197 Investigation of Subgrid-Scale Models in LES of Turbulent Flows with Separation....Pages 199-206 Experimental and Numerical Investigations on Transition in a Laminar Separation Bubble....Pages 207-214 Boundary-layer Separation Computed by Second-Moment Closure Models....Pages 215-222 Experimental Investigation on the Behaviour of Disturbances Emitted from a Point Source in a Laminar Boundary Layer....Pages 223-230 Experimental/Numerical Investigation of the Influence of a Pressure Gradient on Acoustic Roughness Receptivity in the Boundary Layer of an Airfoil....Pages 231-238 Interference of Wave Trains with Varying Phase Relations in a Decelerated Two-Dimensional Boundary Layer....Pages 239-246 Secondary Instability of Steady and Unsteady Crossflow Waves....Pages 247-254 Examination of the Eddy-Viscosity Concept Regarding its Physical Justification....Pages 255-262 Front Matter....Pages 263-263 A Numerical Method for Compressible and Low Mach Number Fluid Flow....Pages 265-272 Turbulent Two-Dimensional Flow Around a Flexible Membrane Airfoil....Pages 273-280 Solution of the Euler Equations on Locally Adaptive B-Spline Grids....Pages 281-288 An Algorithm to Treat Flows Bounded by Arbitrarily Shaped Surfaces with Cartesian Meshes....Pages 289-296 Grid Refinement Study with a UHCA Wing-Body Configuration Using Richardson Extrapolation and Grid Convergence Index GCI....Pages 297-303 Convergence Acceleration on Unstructured Meshes....Pages 304-311 Enhancement of a Navier-Stokes Flow Solver for patched Grids with Non-Coincident Grid Nodes....Pages 312-319 Front Matter....Pages 321-321 Flow and Turbulence Structures in the Wake of a Simplified Car Model (Ahmed Modell)....Pages 323-330 Flow Visualisation, Pressure Measurements and Numerical Calculations on Spike-Tipped Bodies....Pages 331-338 Front Matter....Pages 339-339 Tip-Vortices in Transonic Axial-Compressors....Pages 341-349 Front Matter....Pages 351-351 Airframe Noise — Generation and Reduction....Pages 353-364 Front Matter....Pages 365-365 Receptivity of Three-Dimensional Boundary Layers to Roughness and Suction — Linear and Nonlinear Effects....Pages 367-374 Active Control of Tollmien-Schlichting Instabilities by Multi-Channel Sensor Actuator Systems....Pages 375-382 Front Matter....Pages 383-383 Time Resolved 2D Measurement Techniques for Quantitative Determination of Flow Fields and Surface Pressure Distributions....Pages 385-394 Investigation of Transitional Structures in Artificially and Disturbed Excited Flat Plate Boundary Layer Flows Using Stereo and Multi-Plane PIV....Pages 395-402 The Meaning of Disturbance Fields in Transition Experiments and Their Detection in the Test Section Flow of a Short Duration Wind Tunnel....Pages 403-410 Surface Fence with an Integrated, Piezoresistive Pressure Sensor for Measurements of Static and Dynamic Wall Shear Stress....Pages 411-418 Experimental Investigation of the Flow Close to the Surface of a High Lift Airfoil Configuration in a Large Wind Tunnel....Pages 419-425 Detection of Density Gradients at Helicopter Rotor Blades in Flight....Pages 426-433 Back Matter....Pages 435-435 High Aspect-Ratio Wings Low Aspect-Ratio Wings Hypersonic Flows Fluid-Structure-Coupling Fundamentals of Fluid Flow Transition and Fluidmechanical Modelling Mathematical Fundamentals/Numerical Simulation Bluff Bodies Turbomachinery Airframe Noise Laminar Flow Control Measuring Techniques. This volume contains the papers of a German symposium dealing with research and project work in numerical and experimental aerodynamics and fluidmechanics for aerospace and other applications. It gives a broad overview over the ongoing work in this field in Germany.