Visualization and fundamental analysis of liquid atomization by fuel slingers in small gas turbine engines

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

There are strong engineering motivations for wanting to place the design of fuel slingers and the understanding of their performance on an improved technical foundation. To date, however, there have been no studies conducted at a fundamental level of the basic physical processes involved in fuel slinger operation, or of the design and performance rules that are implied by these. We present results from visualization experiments of liquid atomization in a variety of fuel slinger geometries over a range of operating conditions. These visualizations then lead to a fundamental technical analysis that develops broadly applicable design and performance rules for round-hole fuel slingers in small gas turbines. The results from this analysis provide excellent correlation of experimental data by Morishita (1981) on the atomization performance of gas turbine slingers for various combinations of slinger diameters, number of holes, hole sizes, liquid flow rates, and slinger rotation rates. The results provide a basis for understanding the performance of existing fuel slingers, for guiding the design of improved fuel slingers, and for pointing to potentially dramatic new improvements in fuel slinger technology for small gas turbines.

Original languageEnglish (US)
Title of host publication32nd AIAA Fluid Dynamics Conference and Exhibit
StatePublished - Dec 1 2002
Externally publishedYes
Event32nd AIAA Fluid Dynamics Conference and Exhibit 2002 - St. Louis, MO, United States
Duration: Jun 24 2002Jun 26 2002

Publication series

Name32nd AIAA Fluid Dynamics Conference and Exhibit

Other

Other32nd AIAA Fluid Dynamics Conference and Exhibit 2002
CountryUnited States
CitySt. Louis, MO
Period6/24/026/26/02

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ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering

Cite this

Dahm, W. J. A., Patel, P. R., & Lerg, B. H. (2002). Visualization and fundamental analysis of liquid atomization by fuel slingers in small gas turbine engines. In 32nd AIAA Fluid Dynamics Conference and Exhibit (32nd AIAA Fluid Dynamics Conference and Exhibit).