Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2117/11541

Bubbly jet impingement in different liquids
Suñol Galofre, Francesc Xavier; González Cinca, Ricardo
Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri
The impingement of bubbly jets in distilled water and ethanol has been experimentally studied on ground. An experimental apparatus for the study of jet impingement on ground and inmicrogravity has been designed. The opposed-jet configuration with changeable orientation is used in order to study which is the better disposition to achieve an efficient mixing process. The impact angle between jets that can be changed from 0◦ (frontal collision) up to 90◦ (perpendicular collision). The impinging jets are introduced into a test tank full of liquid by means of two bubble injectors. The bubble generation method, insensitive to gravity level for low Bond numbers, is based on the creation of a slug flow inside a T-junction of capillary tubes of 0.7 mm of diameter. Bubble velocities at the injector outlet and generation frequencies can be controlled by changing gas and liquid flow rates. Individual bubble properties and coalescence events, as well as the whole jet structure are analyzed from the images recorded by a high speed camera. Bubble velocities are compared with the velocity field of a single-phase jet. Rate of coalescence between bubbles is found higher in ethanol than in water, creating a higher dispersion in bubble sizes.
Peer Reviewed
Àrees temàtiques de la UPC::Física::Física de fluids::Líquids
Jet impingement
Bubbly jet
Microgravity
Bombolles
info:eu-repo/semantics/publishedVersion
Artículo
         

Mostrar el registro completo del ítem

Documentos relacionados

Otros documentos del mismo autor/a

Suñol Galofre, Francesc Xavier; Maldonado, Oscar; Vidal Arco, Eduardo; García, Anna; González Cinca, Ricardo
Suñol Galofre, Francesc Xavier; González Cinca, Ricardo
Arias Calderón, Santiago; Suñol Galofre, Francesc Xavier; González Cinca, Ricardo
Suñol Galofre, Francesc Xavier; González Cinca, Ricardo
Suñol Galofre, Francesc Xavier; Pino González, David; Maldonado, Oscar; González Cinca, Ricardo