A novel particle tracking and break-up detection algorithm: application to the turbulent break-up of bubbles

Rodríguez Rodríguez, Javier and Martínez Bazán, Carlos and Montañés García, José Luis (2003). A novel particle tracking and break-up detection algorithm: application to the turbulent break-up of bubbles. "Measurement Science and Technology", v. 14 (n. 8); pp. 1328-1340. ISSN 0957-0233. https://doi.org/10.1088/0957-0233/14/8/319.

Description

Title: A novel particle tracking and break-up detection algorithm: application to the turbulent break-up of bubbles
Author/s:
  • Rodríguez Rodríguez, Javier
  • Martínez Bazán, Carlos
  • Montañés García, José Luis
Item Type: Article
Título de Revista/Publicación: Measurement Science and Technology
Date: August 2003
ISSN: 0957-0233
Volume: 14
Subjects:
Freetext Keywords: particle velocity, turbulent dissipation, bubble break-up, break frequency, particle tracking, high speed video, hot wire anemometry, image processing, computer vision, spray systems, atomization, multiphase flows
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A new method has been developed to measure experimentally the break-up properties of bubbles. The technique is based on the application of a particle tracking velocimetry algorithm to high-speed video images not only to measure the velocity of the bubbles, but also to detect the break-up events. Thus the algorithm is able to associate every broken bubble with the daughter bubbles formed upon their corresponding break-up. Moreover, the lifetime, as well as the number and size of fragments resulting from the break-up process, can be measured for a large number of bubbles. Statistical processing of the information collected allows us to compute the break-up frequency and daughter size distribution of the bubbles as a function of the bubble size and the mean properties of the base flow. The method has been employed to study the break-up of a cloud of bubbles injected at the central axis of a turbulent water jet. Experimental results for the break-up frequency and daughter bubble size distribution are also presented to illustrate the performance of the technique.

More information

Item ID: 6213
DC Identifier: http://oa.upm.es/6213/
OAI Identifier: oai:oa.upm.es:6213
DOI: 10.1088/0957-0233/14/8/319
Official URL: http://iopscience.iop.org/0957-0233/14/8/319
Deposited by: Memoria de Investigacion 2
Deposited on: 01 Mar 2011 09:24
Last Modified: 20 Apr 2016 15:31
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