Abstract

Acoustic Doppler velocimeter (ADV) measurements are useful and powerful for measurements of mean and turbulent components of fluids in both hydraulic experimental facilities and fields. However, it is difficult to use the ADV in bubbly flows because air bubbles generate spike noise in the ADV velocity data. This study describes the validity of the ADV measurements in bubbly flows. The true three-dimensional phase space method originally developed by Goring and Nikora in 2002 is significantly useful to eliminate spike noise of ADV recorded data in bubbly flow in comparison with the classical low correlation method.

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