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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/29643

Title: Numerical Analysis of Ethylene Injection in the Inlet of a Mach Six Scramjet
Authors: West, Jonathan Philip
Advisor: Sislian, Jean Pascal
Department: Aerospace Science and Engineering
Keywords: scramjet
fuel injection
fuel mixing
computational fluid dynamics
Issue Date: 29-Aug-2011
Abstract: A scramjet inlet was designed for use on a small scale, Mach six, ethylene-fuelled vehicle. The inlet used strut-based cantilevered fuel injectors and a well-defined mixing duct to mix fuel prior to the combustor. Designed using theoretical and numerical analyses, the resulting inlet configuration consisted of a single body shock inlet with vertical fuel injector struts and four cantilevered injectors per strut side. This inlet was 80 cm long and 42 cm high. Numerical analysis of the vehicle was conducted with computational fluid dynamics by solving the Favre-Averaged Navier-Stokes equations; turbulence was simulated using the Wilcox k-ω model. Multispecies simulations in two and three dimensions were used to evaluate the design. Analysis of the simulated flow features, thrust potential and mixing efficiency demonstrated favourable vehicle performance. In particular, the inlet allowed for complete combustion when lean equivalence ratios of less than 0.7 were used.
URI: http://hdl.handle.net/1807/29643
Appears in Collections:Master

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