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Więcej informacji o Critical Design Parameters for Pylon-Aided Gaseous Fuel Injection Upstream of a Flameholding Cavity

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Opis

The Air Force Institute of Technology 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.

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Kategoria Książki po angielsku Society & social sciences Education

• Pełny tytuł: Critical Design Parameters for Pylon-Aided Gaseous Fuel Injection Upstream of a Flameholding Cavity
• Autor: Mitchell R Pohlman
• Język: Angielski
• Oprawa: Miękka
• Liczba stron: 146
• EAN: 9781249594178
• ISBN: 9781249594178
• ID: 08142426
• Wydawca: Biblioscholar
• Waga: 272 g
• Wymiary: 246 × 189 × 8 mm
• Data wydania: 09. October 2012

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