Abstract
In this study, a method of pre-combustion cracking is adopted in the investigation of the rotating detonation fueled by kerosene. The basic characteristics of the rotating detonation wave (RDW) including the wave speed, pressure, and propagating modes are researched. The wave speed increases when the equivalence ratio is near the stoichiometric ratio, but it is little affected by the flow rates. Different to the wave speed performance, the pressure of the RDW tends to increase when the flow rates rise but show weak relation with the ER. Features and transition of the five rotating detonation modes including the two-co rotating waves, two-counter rotating waves, single-wave, pop-out and failure mode are investigated. The lean fuel boundary of the RDW is broadened with the increase of the flow rates. Also, the effect of the oxygen ratio (50% and 30%) of the oxidizer (oxygen-enriched air) on the characteristics of the RDW is investigated. The rotating detonation using oxidizer with the higher oxygen ratio has a better speed performance than with the lower oxygen ratio.
Published Version
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