Calibration of Xprobes for turbulent flow measurements
Abstract
Two methods of calibrating the yaw response of hotwire probes are compared: (1) the assumption that an effective angle, independent of the flow speed, can be deduced; and (2) the more general approach of determining the yaw response at a number of different speeds. The first, simpler, approach is shown to give surprisingly reasonable results for the usual turbulence statistics, even in high turbulence intensity flows. Some differences in the distribution of the inclination of the instantaneous velocity vector are observed. There is no advantage in using the ksquared factor to allow for longitudinal cooling.
 Publication:

Experiments in Fluids
 Pub Date:
 1989
 Bibcode:
 1989ExFl....7..201B
 Keywords:

 Calibrating;
 Flow Measurement;
 HotWire Anemometers;
 Turbulent Flow;
 Cooling;
 Flow Velocity;
 Shear Stress;
 Yaw;
 Instrumentation and Photography