The Young Researchers’ Forum on Detonation: From Fundamentals to Applications (Season 2 Episode 12)

Описание: Title: Progress, challenges, and open questions in Rotating Detonation Combustion
Speaker: Dr. Myles Bohon
Position: Guest professor and head of the Pressure Gain Combustion research group, Technische Universität Berlin
Date: April 9, 2021

Abstract:
In the past few years, the field of pressure gain combustion (PGC) has been trying to realize the potential performance and efficiency gains available in the shift from constant pressure combustion to a PGC cycle. In this process, several combustor technologies that utilize a non-constant pressure heat release process to increase total pressure through the combustor have been developed, with the rotating detonation combustor (RDC) becoming one of the most promising. This combustor functions by initiating a detonation wave that propagates around the perimeter of a continually refilled annular combustor. In this way the detonation wave constantly propagates into fresh reactants after which reactant refill begins anew, while the combustion products are exhausted to provide thrust or drive turbomachinery. This simple description belies a great deal of complexity in the operation of the device, such as: the importance of reactant injection and reactant mixing, the coupling of the detonation with the chamber acoustics, minimizing total pressure loss, maximizing the work extracted through the unsteady outflow, and so on. Our group has been studying these effects in the past four years, and this presentation will highlight some of our results as we work to develop this technology.