Abstract
This paper proposes a new three consecutive time picture cross-correlation 3-D PTV (Particle Tracking Velocimetry), which is based on the combination of the binary image cross-correlation 2-D particle tracking between two projected screens, stereo pair matching and 3-D particle identification on three consecutive time pictures at regular time intervals. The present technique is applied to measure the flow structure of a weak bubbling-jet two-phase flow, and as a result, about one-hundred and fifty particle velocity vectors in the liquid motion and several higher velocity vectors of air bubbles are successfully measured.
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