Dynamics of bubble formation in cylindrical and planar geometries

  1. Bolaños Jiménez, Rocio
unter der Leitung von:
  1. Alejandro Sevilla Santiago Doktorvater
  2. Carlos Martínez Bazán Doktorvater

Universität der Verteidigung: Universidad de Jaén

Fecha de defensa: 04 von März von 2011

Gericht:
  1. Norman Riley Präsident/in
  2. Enrique Sanmiguel Rojas Sekretär
  3. Antonio Lozano Fantoba Vocal
  4. Francisco Javier Rodríguez Rodríguez Vocal
  5. José Manuel Gordillo Arias de Saavedra Vocal
Fachbereiche:
  1. INGENIERÍA MECÁNICA Y MINERA

Art: Dissertation

Teseo: 310252 DIALNET lock_openRUJA editor

Zusammenfassung

The formation and subsequent collapse of a bubble constitute a rich and beauti- ful physical phenomenon which, despite its importance, is still full of surprises. A deep understanding of this problem is required for an optimum design of industrial equipments used to generate bubbles to ensure a more efficient use of energy. There- fore, the purpose of this Thesis is to improve our knowledge about the classical, but still not completely understood, problem of formation of bubbles from submerged nozzles in stagnant liquids. In particular, we focus on the dynamics of the final instants previous to pinch-off. In addition, bubble formation in co-flowing air-water configuration with an innovative planar geometry is studied, which could represent an alternative system to produce bubbles in a massive way.