The correction of hot wire measurements for fluid temperature variation
Abstract
The effects of fluid temperature variations on constant temperature hot-wire measurements are evaluated. The correction functions for temperature variations are derived both for turbulence and mean flow measurement. It is shown that the temperature variation corrections to turbulence measurements are more than four times as high as the corrections to mean flow measurements. The effect of temperature drift on hot-wire sensitivity is demonstrated by direct dynamic calibration of a hot-wire at two different temperatures.
- Publication:
-
5th Australasian Conference on Hydraulics and Fluid Mechanics,Volume 1
- Pub Date:
- 1975
- Bibcode:
- 1975hfm.....1..368S
- Keywords:
-
- Calibrating;
- Flow Distribution;
- Hot-Wire Anemometers;
- Temperature Effects;
- Turbulent Flow;
- Numerical Analysis;
- Temperature Distribution;
- Temperature Measurement;
- Instrumentation and Photography