Atomization and Sprays Journal of the International Institutes for Liquid Atomization and Spray Systems

ISSN for PRINT: 1045-5110

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2006, Volume16

Issue 8

159 pages

DOI: 10.1615/AtomizSpr.v16.i8

Issue price - $80.00

Werner J. A. Dahm
Laboratory for Turbulence and Combustion, Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI48109-2140, USA

Prashant R. Patel
Laboratory for Turbulence and Combustion, Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI48109-2140, USA

Bryan H. Lerg
Laboratory for Turbulence and Combustion, Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI48109-2140, USA

Results are presented from analyses of liquid breakup regimes in which fuel slingers have recently been found to operate. A result is obtained for the liquid film thickness t that provides the proper length scale for correlating the atomization performance of slingers operating in the supercritical film-mode breakup regime. A corresponding result is also found for the subcritical ligament diameter d' that correlates the atomization performance of slingers operating in the subcritical film-mode regime. The transition between these modes is shown to scale as We_t^1/2. Corresponding results are also presented for noncircular channel shapes. An analysis of in-channel Coriolis effects indicates how such liquid accumulation can be avoided. Slinger atomization performance is shown to correlate with a Weber number based on the appropriate length scale that governs the liquid breakup regime in which the slinger operates, with only a weak residual Ohnesorge number effect. Available data on slinger atomization performance are found to correlate well with the present results.

DOI: 10.1615/AtomizSpr.v16.i8.60 Download article, 945-962 pages

Article price - $35.00

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