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Full-Text Articles in Engineering
Impact Of Trench And Ramp Film Cooling Designs To Reduce Heat Release Effects In A Reacting Flow, Michael R. Delallo
Impact Of Trench And Ramp Film Cooling Designs To Reduce Heat Release Effects In A Reacting Flow, Michael R. Delallo
Theses and Dissertations
Increasing combustor fuel-air ratios are a recent area of concern in gas turbine film cooling due to the potential for heat release on the surface of film-cooled components. This investigation compared four different cooling designs on their heat release potential: namely fanned, normal and radial trenched, and ramped. Measurements of heat flux to the downstream surface, when subjected to a reacting mainstream flow, provide a qualitative comparison between the four tested configurations. Furthermore, this work studied the effect of multiple injection points in series along the surface of a flat plate. An upstream set of normal holes and an upstream …
Cooling Requirements For The Ultra Compact Combuster, Donald D. Johnson
Cooling Requirements For The Ultra Compact Combuster, Donald D. Johnson
Theses and Dissertations
Over the past several years, AFIT and the Air Force Research Laboratory have collaboratively investigated a novel combustor system that is compact in design and has potential use in an inter-turbine burner system. The ultra-compact combustor (UCC) design wraps the combustion section circumferentially around the axial core flow and exploits the use of high-g combustion. The combustor's volume and weight are reduced by integrating the exit compressor vane and the turbine inlet vane. This creates a new hybrid vane that resides directly below the circumferential combustor. Recently, a computational effort to understand the fundamental aspects of the UCC on a …