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About this product
- DescriptionThe Air Force Institute of Techlogy and the AFRL are investigating means to increase the efficiency of fuel-air mixing into supersonic flow. Previous work has shown much promise in increasing the penetration and mixing of a fuel-air mixture into the freestream by injecting fuel behind small triangular pylons. Pylon-aided fuel injection has also shown to lift the fuel plume off the combustor floor; this floor-gap prevents the ignition of fuel seeded in the boundary layer. In this paper twenty-one pylons of varying widths, heights, and lengths were examined in four specific test matrices within a CFD environment. Pylons in test matrix 1 maintained a constant height and length while varying the pylon width. Test matrix 2 and 3 varied the absolute height of two different pylons from test matrix 1; scaling the pylons height and maintaining a constant leading edge wedge angle and width to height ratio. The final test matrix varied the length of pylons while keeping the height and width fixed. Pylons with a width less than 3-diameters featured a fuel plume dominated by two sets of counter-rotating vortices.
- Author(s)Mitchell R Pohlman
- Date of Publication09/10/2012
- FormatPaperback / softback
- SubjectEducation & Teaching
- Country of PublicationUnited States
- Weight272 g
- Width189 mm
- Height246 mm
- Spine8 mm
- Format DetailsTrade paperback (US),Unsewn / adhesive bound
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