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MODELING OF ENGINE SPRAYS

Atomization and full-cone sprays from single cylindrical orifices are considered. The following subjects are reviewed: the structure of the breakup region; the structure of the far field; modern models that, given the outcome of the breakup process, compute the steady and transient of sprays; some comparisons with detailed measurements; and some practical applications. The following conclusions are reached: the spray breakup and the development regions are the most relevant in engine applications; the inner structure of the breakup region is still largely unknown; two- and three- dimensional spray models are available but remain mostly untested, particularly in their vaporization and combustion components, in part because of a lack of accurate measurements in controlled engine-type environments; engine applications of such models are, nonetheless, recommended for very valuable learning, interpretative, and exploratory studies, but not for predictions.

  • Availability:
  • Supplemental Notes:
    • International Congress and Exposition, Detroit, Michigan, February 25-March 1, 1985. Reprinted from P-156, Engine Combustion Analysis: New Approaches.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Bracco, F V
  • Publication Date: 1985-2

Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 113-136
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00452385
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 850394 Reprint, HS-039 399
  • Files: HSL, USDOT
  • Created Date: Jan 31 1986 12:00AM