Raffel, Markus and de Gregorio, Frabizio and de Groot, Klaus and Schneider, Oliver and Gibertini, G. and Seraudie, Alain (2011) On the Generation of a Helicopter Aerodynamic Database. The Aeronautical Journal, Vol. 115 (1164), pp. 103-112. Royal Aeronautical Society (RAeS).
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The GOAHEAD (Generation of an Advanced Helicopter Experimental Aerodynamic Database for CFD code validation) consortium was created in the frame of an EU-project in order to create an experimental database for the validation of 3D-CFD and comprehensive aeromechanics methods for the prediction of unsteady viscous flows. This included the rotor dynamics for complete helicopter configurations, i.e. main rotor - fuselage - tail rotor configurations with emphasis on viscous phenomena like flow separation and transition from laminar to turbulent flow. The wind tunnel experiments have been performed during two weeks in the DNW-LLF on a Mach-scaled model of a modem transport helicopter consisting of the main rotor, the fuselage, control surfaces and the tail rotor. For the sake of controlled boundary conditions for later CFD validation, a closed test section has been used. The measurement comprised global forces of the main rotor and the fuselage, steady and unsteady pressures, transition positions, stream lines, position of flow separation, velocity profiles at the test section inlet, velocity fields in the model wake, vortex trajectories and elastic deformations of the main and tail rotor blades.
|Title:||On the Generation of a Helicopter Aerodynamic Database|
|Journal or Publication Title:||The Aeronautical Journal|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 103-112|
|Publisher:||Royal Aeronautical Society (RAeS)|
|Keywords:||PIV, boundary layer, helicopter, laminar-turbulent transition|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Rotorcraft|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L RR - Rotorcraft Research|
|DLR - Research theme (Project):||L - The Active Rotorcraft (old)|
|Location:||Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Transport Aircraft|
Institute of Aerodynamics and Flow Technology > Helicopters
Institute of Flight Systems > Rotorcraft
|Deposited By:||Elisabeth Winkels|
|Deposited On:||06 Apr 2011 09:34|
|Last Modified:||07 Feb 2013 19:46|
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