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Chapter and Conference Paper
Wall Pressure Signature in Compressible Turbulent Boundary Layers
Large-scale turbulent flow structures associated with positive and negative wall pressure fluctuations in a compressible turbulent boundary layer are investigated. Experiments are conducted in a closed-loop tr...
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Article
Recording and evaluation methods of PIV investigations on a helicopter rotor model
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Article
Recording and evaluation methods of PIV investigations on a helicopter rotor model
Three-component particle image velocimetry measurements at moderate speeds and observation distances can now be accomplished on a routine basis. This article discusses the experiment performed on a 4 m-diamete...
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Article
Particle image velocimetry in aerodynamics: Technology and applications in wind tunnels
Particle image velocimetry (PIV) is increasingly used for aerodynamic research and development. The PIV technique allows the recording of a complete flow velocity field in a plane of the flow within a few micr...
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Chapter and Conference Paper
Vortex Dynamics in Nonuniform Compressible Flow
The convection of vortices in convergent nozzles and Laval nozzles is investigated experimentally and numerically. All studies are done for the plane case. The experiments are performed in a transonic wind tun...
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Chapter and Conference Paper
Wave Models for Unsteady Separation and Jets
The unsteady behaviour of separation and jets is explained in terms of the propagation and amplification of waves. The formation of waves on the boundaries of separation and jets is often caused by an instabil...