Add to ORKGThe influence of non-planar blade tips (winglet), respectivily the influence of higher-harmonic control, on the three-dimensional flow field of blade tip vorticies has been investigated with a specially modified 3 component laser-Doppler velocimeter for the first time on a rotating helicopter rotor blade in the German-Dutsch windtunnel (DNW) with a working distance of 5 m. By means of a phase correlated measuring method, both spatial and temporal information on the structure of these blade tip vorticies could be obtained. The results show, that due to the non-planar blade tip the spatial structure and the position of the tip vortex could be changed. The effect of higher harmonic control on the measured flow field clearly indicates the diffe...
The flow field around a helicopter is dominated by strong coherent vortices originating from the bla...
The vortices produced by helicopter rotor blades dominate the aerodynamics of the rotor wake. Their ...
The flow field around a helicopter is dominated by strong coherent vortices originating from the bl...
The measurement of three dimensional local flow vectors of a blade tip vortex at positions near the ...
3D Laser-Doppler-velocimeter measurements within the HART test campaign on a helicopter model rotor ...
The measurement of local flow vectors at positions near the helicopter rotor were performed with a t...
The aerodynamic performances of aircraft wings, helicopter rotors, marine propellers, and turbomachi...
This work examined the wake aerodynamics of a single helicopter rotor blade with several tip shapes ...
To characterize the vortex system of a helicopter rotor with cyclic pitch, an experimental investiga...
A series of comprehensive flight tests investigated the flight dynamics and explored the flight enve...
Flowfield measurements of the blade tip vortices from a rotating helicopter rotor model were perform...
With increasing use of civil helicopters the problem of noise emission of helicopters become more an...
Flow field measurements of the blade tip vortices at a rotating helicopter rotor model were performe...
A series of comprehensive flight tests investigated the flight dynamics and explored the flight enve...
The physical structure and the evolution of helicopter blade tip vortices, particularly the effect o...
The flow field around a helicopter is dominated by strong coherent vortices originating from the bla...
The vortices produced by helicopter rotor blades dominate the aerodynamics of the rotor wake. Their ...
The flow field around a helicopter is dominated by strong coherent vortices originating from the bl...
The measurement of three dimensional local flow vectors of a blade tip vortex at positions near the ...
3D Laser-Doppler-velocimeter measurements within the HART test campaign on a helicopter model rotor ...
The measurement of local flow vectors at positions near the helicopter rotor were performed with a t...
The aerodynamic performances of aircraft wings, helicopter rotors, marine propellers, and turbomachi...
This work examined the wake aerodynamics of a single helicopter rotor blade with several tip shapes ...
To characterize the vortex system of a helicopter rotor with cyclic pitch, an experimental investiga...
A series of comprehensive flight tests investigated the flight dynamics and explored the flight enve...
Flowfield measurements of the blade tip vortices from a rotating helicopter rotor model were perform...
With increasing use of civil helicopters the problem of noise emission of helicopters become more an...
Flow field measurements of the blade tip vortices at a rotating helicopter rotor model were performe...
A series of comprehensive flight tests investigated the flight dynamics and explored the flight enve...
The physical structure and the evolution of helicopter blade tip vortices, particularly the effect o...
The flow field around a helicopter is dominated by strong coherent vortices originating from the bla...
The vortices produced by helicopter rotor blades dominate the aerodynamics of the rotor wake. Their ...
The flow field around a helicopter is dominated by strong coherent vortices originating from the bl...