Evaluation of a Wall-Flow Direction Probe for Measurements in Separated Flows

Abstract
The upstream-downstream flow direction intermittency γpu is an important parameter that can quantitatively describe the stages of flow separation. This paper gives an improved design for a wall-flow-direction probe. Intermittency measurements made using this modified probe show agreement within experimental uncertainties with direct measurements made using a LDV, although both the unmodified and modified probe designs produce results that are consistently higher than those for the LDV.

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