吸气式连续旋转爆震与来流相互作用
收稿日期: 2015-04-28
修回日期: 2015-07-27
网络出版日期: 2015-08-18
基金资助
国家自然科学基金(51306202,51476186,91441201)
Interaction of air-breathing continuous rotating detonation with inflow
Received date: 2015-04-28
Revised date: 2015-07-27
Online published: 2015-08-18
Supported by
National Natural Science Foundation of China (51306202, 51476186, 91441201)
王超 , 刘卫东 , 刘世杰 , 蒋露欣 , 苏义 . 吸气式连续旋转爆震与来流相互作用[J]. 航空学报, 2016 , 37(5) : 1411 -1418 . DOI: 10.7527/S1000-6893.2015.0210
Experiments on continuous rotating detonation (CRD) in the air-breathing mode were performed, and vitiated air and hydrogen were used as oxidizer and fuel, respectively. The pressures in the isolator and detonation combustor are acquired, and three types of interactions of the CRD with the air flow are found. In Type 1, the air flow in the isolator is not affected by the CRD, and neither high-frequency pressure oscillation in the isolator, nor total pressure rise of the air flow is excited. In Type 2, the CRD leads to high-frequency oscillation in the isolator and its dominant frequency is the same as the CRD; the total pressure of the air flow remains constant. In Type 3, the pressure in the isolator oscillates with the same high-frequency of the CRD and the total pressure of the air flow is increased. The influence of the detonation combustor size is preliminarily investigated and results show that the CRD strengthens as the detonation combustor size decreases, and the influence of the CRD propagates towards upstream.
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