Three-component Velocity Measurements in Turbulent Flows Using a Technique of Rotating Probe with an Inclined Hot-Wire

Abstract

A technique has been developed to measure three components of mean velocity, six components of the Reynolds stress, ten components of the triple correlation, and fifteen components of the quadruple correlation of fluctuating velocity in steady turbulent flow using Hot-Wire Anemometry(HWA). The hot-wire signal was acquired by rotating a single inclined hot-wire probe toward a number of spatial orientations at the same location in a turbulent flow-field. Velocity information has been computed by decomposing the response equation for the effective velocity of the hot-wire probe.