Experimental visualizations of liquid breakup regimes in fuel slinger atomization

Werner J.A. Dahm, Prashant R. Patel, Bryan H. Lerg

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


Results are presented from visualization experiments of liquid atomization in a variety of fuel slinger geometries over a range of operating conditions to identify the fundamental phenomena and breakup regimes encountered in fuel slinger operation and optimization. Film breakup and stream breakup modes are identified. Hole size principally affects the liquid film thickness, whereas hole geometry is found to have a significant effect on atomization performance due to resulting surface tension effects acting on the liquid film. Subcritical and supercritical film-mode breakup regimes are identified as well as regular and irregular film-mode breakup regimes. Despite wide use of such slingers for fuel atomization in small gas turbines, the present results appear to be the first systematic investigation of liquid breakup regimes in such devices.

Original languageEnglish (US)
Pages (from-to)933-944
Number of pages12
JournalAtomization and Sprays
Issue number8
StatePublished - Dec 1 2006
Externally publishedYes

ASJC Scopus subject areas

  • Chemical Engineering(all)


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