Data from a wind tunnel investigation of the flow fields around helicopter rotors were presented. A two component laser velocimeter was used to measure the velocity fields of two 2.1 m diameter rotors. A minicomputer-based online data system is described which monitored, reduced, and plotted the results. Tip vortices constitute the primary disturbances in the flow field, but present theories do not predict vortex positions and velocity distributions with sufficient accuracy.
Laser Velocimeter Measurements of Two-Bladed Helicopter Rotor Flow Fields
1977
158 pages
Report
No indication
English
Laser Velocimeter For Use On Helicopter Rotor
NTRS | 1995
|Numerical simulation of helicopter multi-bladed rotor flow
Tema Archive | 1988
|Five-bladed rotor cuts helicopter noise
Tema Archive | 1996
|