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Pylon Fuel Injector Design For A Scramjet Combustor Postprint
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Book Synopsis Pylon Fuel Injector Design for a Scramjet Combustor (Postprint). by :
Download or read book Pylon Fuel Injector Design for a Scramjet Combustor (Postprint). written by and published by . This book was released on 2007 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper covers the initial development of an in-stream fuel injector concept for a circular hydrocarbon scramjet combustor. Three scramjet fuel injection pylon configurations are established--a basic pylon, a ramp pylon, and an alternating wedge pylon. The first pylon configuration is a baseline. The latter two configurations introduce streamwise vorticity into the flow to increase mixing action. Operating conditions and design considerations are discussed and the fuel injector configurations are presented. A testing methodology relating flight conditions to cold flow conditions is addressed. Initial Computational Fluid Dynamic simulations without fuel injection are presented for a wind tunnel cold flow test point. Two parameters used for comparison among the pylons are axial vorticity generation and total pressure loss. It is found the ramp and alternating wedge pylons increase streamwise vorticity in the flow over the basic pylon. The alternating wedge pylon increases streamwise vorticity the most. It is also found the ramp and alternating wedge pylons result in slightly increased total pressure losses due to the induced streamwise vorticity.
Book Synopsis Hypermixer Pylon Fuel Injection for Scramjet Combustors by : Jason Clay Doster
Download or read book Hypermixer Pylon Fuel Injection for Scramjet Combustors written by Jason Clay Doster and published by . This book was released on 2008 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerodynamic Performance of an Injector Strut for a Round Scramjet Combustor (Postprint) by : Chung-Jen Tam
Download or read book Aerodynamic Performance of an Injector Strut for a Round Scramjet Combustor (Postprint) written by Chung-Jen Tam and published by . This book was released on 2007 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical studies were performed to examine different strut configurations to determine their mixing characteristics for possibly use with fuel-injector ports for round scram jet-combustor applications. Several strut configurations were tested to provide a better understanding of the flow physics, in terms of pressure, total pressure recovery, vorticity magnitude, streamlines, and velocity vectors. The conceptual strut designs were placed in a rectangular flow path, and the computations will be followed by an experimental program in the AFRL/RZA Research Cell 19 supersonic wind-tunnel facility, which has a rectangular cross-section area of 12.7 cm x 15.24 cm. The struts were sized, however, for eventual use in a 25.4 cm (10-inch) round combustor. The strut with a constant leading-edge angle and a moderately swept trailing edge seems to provide reasonably good mixing flow features without significantly compromising the total pressure recovery.
Book Synopsis Scramjet Fuel Injector Design Parameters and Considerations: Development of a Two-dimensional Tangential Fuel Injector with Constant Pressure at the Flame by :
Download or read book Scramjet Fuel Injector Design Parameters and Considerations: Development of a Two-dimensional Tangential Fuel Injector with Constant Pressure at the Flame written by and published by . This book was released on 1972 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fuel Injector Design Optimization for an Annular Scramjet Geometry by :
Download or read book Fuel Injector Design Optimization for an Annular Scramjet Geometry written by and published by . This book was released on 2003 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Post-test Analysis of Flush-wall Fuel Injection Experiments in a Scramjet Combustor by : J. Donbar
Download or read book Post-test Analysis of Flush-wall Fuel Injection Experiments in a Scramjet Combustor written by J. Donbar and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance of an Aerodynamic Ramp Fuel Injector in a Scramjet Combustor by : M. Gruber
Download or read book Performance of an Aerodynamic Ramp Fuel Injector in a Scramjet Combustor written by M. Gruber and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pylon Effects on a Scramjet Cavity Flameholder Flowfield by : Andrew B. Freeborn
Download or read book Pylon Effects on a Scramjet Cavity Flameholder Flowfield written by Andrew B. Freeborn and published by . This book was released on 2008 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fuel Injector Design and Develoment for a Combustor by : Mun Hoe Yip
Download or read book Fuel Injector Design and Develoment for a Combustor written by Mun Hoe Yip and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Critical Design Parameters for Pylon-aided Gaseuous Fuel Injection Upstream of a Flameholding Cavity by : Mitchell R. Pohlman
Download or read book Critical Design Parameters for Pylon-aided Gaseuous Fuel Injection Upstream of a Flameholding Cavity written by Mitchell R. Pohlman and published by . This book was released on 2009 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fuel Injector Design Optimization for an Annular SCRAMjet Geometry by : C. J. Steffen
Download or read book Fuel Injector Design Optimization for an Annular SCRAMjet Geometry written by C. J. Steffen and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimizing Scramjet Fuel Injection Array Design by : M. D. Payne
Download or read book Optimizing Scramjet Fuel Injection Array Design written by M. D. Payne and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fuel Injector Design Optimization for an Annular Scramjet Geometry by : Christopher J. Steffen
Download or read book Fuel Injector Design Optimization for an Annular Scramjet Geometry written by Christopher J. Steffen and published by . This book was released on 2003 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Innovative Techniques to Improve Mixing and Penetration in Scramjet Combustors by :
Download or read book Innovative Techniques to Improve Mixing and Penetration in Scramjet Combustors written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Scramjet combustors are characterized by an extremely short residence time for the completion of fuel atomization, mixing and combustion. It is therefore desired to develop fuel injection schemes that will accelerate the mixing process by improving penetration, achieving small-dispersed fuel droplets, and enhancing mixing. To date, scramjet-fueling schemes require multiple fuel-injection locations in conjunction with flame-holding cavities. This thesis involves the design, development and testing of two innovative fuel injection strategies that could be used to precisely enhance mixing and control the fuel distribution in a scramjet combustor. The first approach employs a high frequency-forcing injector where the amplitude and frequency of excitation was chosen to affect both jet spread and penetration depth, independently, by excitation at different jet instability modes. Another novel fuel injection technique is to employ a vortex-breakdown-controlled injector, which includes a swirling annular jet combined with a control non-swirling jet. The vortex is stabilized by injection of a continuous jet near the core of the vortex. When the control jet introduces additional momentum along the vortex mean flow, the breakdown is delayed. This has been used to control both the intensity of vortex breakdown and penetration of the jet, which could be effectively applied to enhance mixing and penetration.
