{"product_id":"critical-design-parameters-for-pylon-aided-mitchell-r-pohlman-9781249594178","title":"Critical Design Parameters for Pylon-Aided Gaseous Fuel Injection Upstream of a Flameholding Cavity","description":"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.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Mitchell R. Pohlman\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1249594170\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781249594178\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Biblioscholar\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 10\/09\/2012\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 146\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.60lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.69h x 7.44w x 0.31d","brand":"Mitchell R. Pohlman","offers":[{"title":"Paperback","offer_id":47611147059455,"sku":"9781249594178","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_561d17c4-5b0d-4ce3-8b18-474791a7dc52.jpg?v=1764512038","url":"https:\/\/www.whiterainbookhouse.com\/products\/critical-design-parameters-for-pylon-aided-mitchell-r-pohlman-9781249594178","provider":"WR Book House","version":"1.0","type":"link"}