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Peer reviewed
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Wu, Yuwen; Weng, Chunsheng; Zheng, Quan; Wei, Wanli; Bai, Qiaodong
Energy (Oxford), 03/2021, Volume: 218Journal Article
Rotating detonation engines (RDEs) have received significant attention from industry and academia alike, owing to their numerous advantages, such as pressure gain combustion, high operation frequency, and near-constant thrust output. Furthermore, there is considerable interest in combining RDEs with gas-turbine engines to further improve their overall system performance. This study examines the propagation characteristics of continuous rotating detonation waves (CRDWs) with a turbine guide vane (TGV). We develop an experimental model of a hydrogen–air rotating detonation combustor integrated with a TGV section and record the high-frequency pressure oscillations and static pressure upstream and downstream of the TGV section. The experimental results indicate that: the interactions between CRDW and the turbine blade cause the reflected shock propagating backwards to the combustor. Both pressure oscillation amplitude and static pressure decline at downstream of TGV. Notably, the pressure oscillation attenuation by the TGV is influenced by the direction of CRDW propagation. When the CRDW propagation direction and the flow path direction of the guide vane are opposite to each other, the pressure oscillation attenuation increases. The findings obtained herein provide benchmark data that help improve the fundamental understanding of CRDW and TGV interaction, and can be used to develop detonation-based propulsion technology. •Rotating detonation combustor integrated with a turbine model to improve performance.•Verification of rotating detonation combustor operation characteristics.•Detailed discussion of interactions between the rotating detonation wave and turbine blade.•Quantitative analysis of pressure oscillation across the turbine under various conditions.•Relationship between pressure amplitude attenuation and detonation propagation direction.
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