Note: images are linked to MPEG movies
Abstract-
The problem of rising air bubbles has fascinated many investigators with its unpredictable and surprising behavior in the past century. In this talk, I will describe our recent efforts revisiting this old problem with a new imaging technique. Precise measurements of the shape and path of a single air bubble (diameter range 0.1 - 0.3 cm) rising in still water will be presented. Focuses will be on the instabilities developed in the wake of the bubble, and their impact on the shape and motion of the bubbles. In addition, the influence of contaminants in water on the shape and path of the bubbles will be discussed.
Note: images are linked to MPEG movies
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