Abstract
The installed performance of a rotating detonation engine in a waverider vehicle was investigated. An ideal parametric analysis was performed by combining a waverider forebody generated by the osculating flowfield method and a second-order performance model for a rotating detonation engine. The analysis examined the waverider forebody geometry and freestream conditions on engine performance, with emphasis on volumetric efficiency and vehicle range. Design cases were selected by considering the physical limitations of initiating and sustaining a detonation wave. The greatest pressure recovery, and therefore the greatest installed engine performance, was observed at small waverider cone angles and convex forebody profiles. Engine performance was found to improve with increasing Mach number, but propellant autoignition temperature limits might present a barrier to operation at freestream Mach numbers above 3.5. These limits were eased, and performance increased, at higher dynamic pressures of operation. Mass-independent range metrics were observed to be insensitive to freestream parameters.
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