Influence of propagation direction on operation performance of rotating detonation combustor with turbine guide vane

作     者：Wan-li Wei Yu-wen Wu Chun-sheng Weng Quan Zheng Wan-li Wei;Yu-wen Wu;Chun-sheng Weng;Quan Zheng

作者机构：National Key Laboratory of Transient PhysicsNanjing University of Science and TechnologyNanjing210094China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2021年第17卷第5期

页      面：1617-1624页

核心收录：

学科分类：080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：the National Natural Science Foundation of China(No.11702143 and 11802137) the Fundamental Research Funds for the Central Universities(No.30918011343 and 30919011259) 

主　　题：Rotating detonation combustor Propagation direction Turbine guide vane Operation performance 

摘      要：Due to the pressure gain combustion characteristics,the rotating detonation combustor(RDC)can enhance thermodynamic cycle ***,the performance of gas-turbine engine can be further improved with this combustion *** the present study,the RDC operation performance with a turbine guide vane(TGV)is experimentally *** and air are used as propellants while hydrogen and air mass flow rate are about 16.1 g/s and 500 g/s and the equivalence ratio is about 1.0.A pre-detonator is used to ignite the ***-frequency dynamic pressure transducers and silicon pressure sensors are employed to measure pressure oscillations and static pressure in the combustion *** experimental results show that the steady propagation of rotating detonation wave(RDW)is observed in the combustion chamber and the mean propagation velocity is above 1650 m/s,reaching over 84%of theoretical Chapman-Jouguet detonation *** and counterclockwise propagation directions of RDW are *** clockwise propagation direction,the static pressure is about 15%higher in the combustor compared with counterclockwise propagation direction,but the RDW dominant frequency is *** the oblique shock wave propagates across the TGV,the pressure oscillations reduces *** addition,as the detonation products flow through the TGV,the static pressure drops up to 32%and 43%for clockwise and counterclockwise propagation process respectively.