Design, characterization, and performance of a valveless pulse detonation engine
Johnson, Robert G.
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Current interest in developing a low cost, less complex tactical missile propulsion system that operates on readily available liquid fuels and can operate from low subsonic to a flight Mach number of 5 is driving research on pulse detonation engines. This research program involved the design, construction, and testing of a valveless Pulse Detonation Engine using a JP-10/ air mixture as the primary combustible reactants. A small JP-10/oxygen pre- detonation tube was used to initiate the detonation in the JP-10/air mixture in the engine. The engine was tested at various inlet conditions and equivalence ratios in order to determine the detonable regime of the fuel/air mixture. The original area transition from the pre-detonation tube to the main combustion tube appeared to be too extreme, so a tube was added to extend the pre- detonation tube into the throat of a shock focusing device inserted flush with the head end of the main combustion tube to promote more favorable transition conditions
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Propagation of a Two-Phase Detonation Across a Geometric Difraction with Compositional Discontinuity Hofstedt, Todd A. (Monterey, California. Naval Postgraduate School, 2000-06);The research program involved the modification and use of an existing pulse detonation engine (PDE) to investigate the detonability of a JP-10/air aerosol. The detonation of a JP-10 aerosol in air proved more difficult ...
Wittmers, Nicole K. (Monterey, California. Naval Postgraduate School, 2004-12);Operational characteristics of a valveless pulse detonation engine system were characterized by experimental measurements of thrust, fuel flow, and internal gas dynamics. The multi-cycle detonation experiments were performed ...
Brophy, C.M.; Werner, S.; Sinibaldi, J.O. (AIAA, 2003-01);A valveless pulse detonation engine geometry has been partially evaluated on a direct-connect test stand at simulated inlet flight conditions to the combustor. The geometry utilizes a enriched air initiator to initiate ...