A comparison of turbulence measurement methods
Abstract
An experiment is described in which temperature (density) and velocity are measured separately but simultaneously as functions of time so that it is possible to determine the relationships among velocity, density, and the product of density and velocity. Temperatures were measured with a dual-wire thermocouple probe. Velocity data were supplied by a fringe laser-Doppler anemometer. Signals from thermocouples and the laser were recorded on FM magnetic tape for later processing.
- Publication:
-
Turbine Engine Hot Section Technology, 1987
- Pub Date:
- October 1987
- Bibcode:
- 1987tehs.nasa...81F
- Keywords:
-
- Correlation;
- Flow Velocity;
- Gas Temperature;
- Laser Doppler Velocimeters;
- Turbulent Flow;
- Velocity Measurement;
- Electric Potential;
- Thermocouples;
- Instrumentation and Photography