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Authors: LI LEI
Keywords: Re-initiation, Detonation transition, Transverse waves, Schlieren, PLIF, Activation energy
Issue Date: 14-Mar-2017
Citation: LI LEI (2017-03-14). REFLECTED RE-INITIATION OF GASEOUS DETONATION. ScholarBank@NUS Repository.
Abstract: The aim of the present study is to reveal the detailed process of detonation re-initiation using ethylene fuel through multiple reflections and investigate the mechanisms that could contribute to the final re-initiation after several successive reflections. In order to observe the dynamic changes of the phenomenon using different complementary approaches, Schlieren Photography, soot foil visualization, planar laser induced fluorescence (PLIF) and numerical simulations have been employed. The study successfully clarified the complete re-initiation process and identified the role of the interactions between small transverse waves to detonation re-initiation. Besides, the present study also discovered the influences from the channel length and channel width to the re-initiation performance, and showed differences between stable and unstable detonation re-initiation phenomenon. The results can be widely applied in propulsion applications and in industry for hazard prevention.
Appears in Collections:Ph.D Theses (Open)

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