Generación controlada de burbujas y estudio de su dinámica colectiva

Resum

This PhD dissertation presents experimental studies based on the controlled bubble generation in different configurations as well as on the dynamics of confined bubble swarms whose evolution is driven by coalescence. In the first part, two different methods to actively control the bubble formation process in unbounded air-liquid co-flowing streams are experimentally analyzed. The second part of the dissertation is focused on the experimental analysis of the dynamics of a population of bubbles within a confined swarm of bubbles rising at high-Reynolds number driven by buoyancy, whose evolution is strongly dominated by the bubble coalescence.