## New Results in Numerical and Experimental Fluid Mechanics III: Contributions to the 12th STAB/DGLR Symposium Stuttgart, Germany 2000Siegfried Wagner, Ulrich Rist, Hans-Joachim Heinemann, Reinhard Hilbig 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. |

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### Contents

Design Work for the A3XX HighLiftWing | 3 |

Recent Improvements in the Measurement of Aerodynamic Damping Derivatives | 11 |

Calculation of Horizontal Stabilizer Efficiency with a NavierStokes Code | 19 |

3D RANS Simulations for HighLift Analysis of Transport Aircraft Configurations | 27 |

Numerical Investigation of the ReynoldsNumberEffect on the Setting Sensitivity of a 2D HighLift MultiElement Airfoil | 35 |

Separation Control on a HighLift Configuration by Periodic Exitation | 42 |

Numerical Investigation of the Effect of the HighLift Configuration of a Transport Aircraft on its Vortex Wake | 50 |

The Relationship Between Near andFarField of Vortex Wakes from Aircraft with High Aspect Ratio Wings | 58 |

Experimental Investigation on the Behaviour of Disturbances Emitted from a Point Source in a Laminar Boundary Layer | 223 |

of a Pressure Gradient on Acoustic Roughness Receptivity in the Boundary Layer of an Airfoil | 231 |

Interference of Wave Trains with Varying Phase Relations in a Decelerated TwoDimensional Boundary Layer | 239 |

Secondary Instability of Steady and Unsteady Crossflow Waves | 247 |

Examination of the EddyViscosity Concept Regarding its Physical Justification | 255 |

Mathematical Fundamentals Numerical Simulation | 263 |

A Numerical Method for Compressible and Low Mach Number Fluid Flow | 265 |

Turbulent TwoDimensional Flow Around a Flexible Membrane Airfoil | 273 |

Influence of Different Flap Settings on the Hazard Posed to Following Aircraft | 66 |

Numerical Simulation of WakeVortex Encounters Using the ChimeraTechnique | 74 |

Aspects of Low Speed Wind Tunnel Testing on an A400M Model with Propeller Simulation | 82 |

Coupling of DLR NavierStokes Solver FLOWer with an eNDatabase Method for LaminarTurbulent Transition | 92 |

Low AspectRatio Wings | 101 |

Unsteady Measurements with the Continuously Rotating DLRPSPModel at the Transonic Wind Tunnel Gottingen DNWTWG | 103 |

Hypersonic Flows | 111 |

Turbulence Modeling for ReentryVehicles | 113 |

Computation of the TwoDimensional Flow in SERN Nozzles | 121 |

Experimental Investigation of a Hypersonic Inlet for the TSTOConfiguration ELAC | 129 |

JAPHAR | 137 |

Study of ShockWaveBoundaryLayer Interaction Flowfield on a 24 Ramp Model | 145 |

Disturbances in a Laminar Boundary Layer with Impinging Shock Waves | 153 |

Surface Temperature Effects on ShockWave BoundaryLayer Interaction of Ramp Flows | 161 |

FluidStructureCoupling | 169 |

Preliminary Results of Numerical Simulations of Elastic Panels in Transonic Flows | 171 |

Fundamentals of Fluid Flow | 179 |

Numerical Simulation of Laminar SeparationBubble Control | 181 |

On the Structure of Turbulence in the Transition Cylinder Wake | 189 |

Transition and Fluidmechanical Modelling | 197 |

Investigation of SubgridScale Models in LES of Turbulent Flows with Separation | 199 |

Experimental and Numerical Investigations on Transition in a Laminar Separation Bubble | 207 |

Boundarylayer Separation Computed by SecondMoment Closure Models | 215 |

Solution of the Euler Equations on Locally Adaptive BSpline Grids | 281 |

An Algorithm to Treat Flows Bounded by Arbitrarily Shaped Surfaces with Cartesian Meshes | 289 |

Configuration Using Richardson Extrapolation and Grid Convergence Index GCI | 297 |

Convergence Acceleration on Unstructured Meshes | 304 |

Enhancement of a NavierStokes Flow Solver for Patched Grids with NonCoincident Grid Nodes | 312 |

Bluff Bodies | 321 |

Flow and Turbulence Structures in the Wake of a Simplified Car Model Ahmed Modell | 323 |

Flow Visualisation Pressure Measurements and Numerical Calculations on SpikeTipped Bodies | 331 |

Turbomachineri | 339 |

TipVortices in Transonic AxialCompressors | 341 |

Airframe Noise | 351 |

Airframe Noise Generation and Reduction A Report on Status and Perspectives of DLRResearch | 353 |

Laminar Flow Control | 365 |

Receptivity of ThreeDimensional Boundary Layers to Roughness and Suction Linear and Nonlinear Effects | 367 |

Active Control of TollmienSchlichting Instabilities by MultiChannel Sensor Actuator Systems | 375 |

Measuring Techniques | 383 |

for Quantitative Determination of Flow Fields and Surface Pressure Distributions | 385 |

and Disturbed Excited Flat Plate Boundary Layer Flows Using Stereo and MultiPlane PIV | 395 |

and Their Detection in the Test Section Flow of a Short Duration Wind Tunnel | 403 |

Sensor for Measurements of Static and Dynamic Wall Shear Stress | 411 |

Experimental Investigation of the Flow Close to the Surface of a High Lift Airfoil Configuration in a Large Wind Tunnel | 419 |

Detection of Density Gradients at Helicopter Rotor Blades in Flight | 426 |

### Other editions - View all

New Results in Numerical and Experimental Fluid Mechanics III Siegfried Wagner,Ulrich Rist,Hans-Joachim Heinemann No preview available - 2002 |

### Common terms and phrases

acoustic actuator adapted adverse pressure gradient aerodynamic AIAA aircraft airfoil amplitude angle of attack blade Braunschweig calculated cells component compressible computation configuration convergence cylinder deflection density direct numerical simulation disturbance downstream effects equations experiments Figure flap flow field fluctuations Fluid Mechanics flux frequency geometry grid heat high-lift hypersonic influence inlet instability interaction investigated JAPHAR laser leading edge lift coefficient linear linear stability theory Mach number maximum measurements mesh method mode Navier-Stokes noise nozzle obtained panel parameters performed plane plate position pressure distribution pressure gradient propeller ramp ratio reattachment region Reynolds number Reynolds-stress tensor Richardson Extrapolation scheme Schlieren sensor separation bubble shear stress shock shown shows slat solution spanwise spatial stability streamwise structure surface technique temperature test section trailing edge transition locations transition prediction transonic turbulence model unsteady upstream velocity vortex vortex pair vortices wake wave wind tunnel wing