Velocity Measurements on the Aerodynamic Wake of a Hovercraft Using Laser Doppler Anemometry.
TORONTO UNIV (ONTARIO) INST FOR AEROSPACE STUDIES
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The laser Doppler technique has been applied to determine the aerodynamic wake velocity components behind a tethered air cushion vehicle ACV which runs close to a confining wall. Two velocity components were measured for a number of locations behind the vehicle, using the fringe mode and forward scattering from unseeded air. Some auxiliary forward and back scatter experiments with pulsed and D C lasers are also described. A video tape recorder was used to record all the laser Doppler data, which could then be processed by an oscilloscope, a spectrum analyzes or a DISA 55L signal processor. Results are presented which show that the stabilized wake effects are minimal for UTIAS ACV and its associated facility. Author
- Surface Effect Vehicles and Amphibious Vehicles
- Fluid Mechanics