3D LDA measurement in an axial fan rotor
Abstract
A stacked three-dimensional Laser Doppler Anemometer (LDA) system has been developed on the basis of a one-dimensional and a two-dimensional LDA system. This system was successfully used in the measurement of the rotational flowfield inside a small axial fan rotor. The measurements reveal rich and complex flow structures near the blade tip region. In particular, fine helical vortex structures are obtained which prove the system a useful tool in turbomachinery flow measurement.
- Publication:
-
Journal of Aerospace Power
- Pub Date:
- January 1992
- Bibcode:
- 1992JAerP...7....9W
- Keywords:
-
- Axial Flow Turbines;
- Flow Measurement;
- Laser Anemometers;
- Laser Doppler Velocimeters;
- Three Dimensional Flow;
- Flow Distribution;
- Rotating Fluids;
- Rotor Aerodynamics;
- Fluid Mechanics and Heat Transfer