高总温来流下的连续旋转爆震验证试验

推进技术 ›› 2016, Vol. 37 ›› Issue (3): 578-584.

高总温来流下的连续旋转爆震验证试验

王超,刘卫东,刘世杰,蒋露欣,林志勇

国防科学技术大学高超声速冲压发动机技术重点试验室，湖南长沙 410073,国防科学技术大学高超声速冲压发动机技术重点试验室，湖南长沙 410073,国防科学技术大学高超声速冲压发动机技术重点试验室，湖南长沙 410073,国防科学技术大学高超声速冲压发动机技术重点试验室，湖南长沙 410073,国防科学技术大学高超声速冲压发动机技术重点试验室，湖南长沙 410073

发布日期:2021-08-15
作者简介:王超，男，博士生，研究领域为连续旋转爆震。
基金资助:
国家自然科学基金资助项目(51306202；91216120)。

Validating Experiment of Continuous Rotating Detonation

Science and Technology on Scramjet Laboratory，National University of Defense Technology，Changsha 410073，China,Science and Technology on Scramjet Laboratory，National University of Defense Technology，Changsha 410073，China,Science and Technology on Scramjet Laboratory，National University of Defense Technology，Changsha 410073，China,Science and Technology on Scramjet Laboratory，National University of Defense Technology，Changsha 410073，China and Science and Technology on Scramjet Laboratory，National University of Defense Technology，Changsha 410073，China

Published:2021-08-15

摘要/Abstract

摘要： 为验证吸气式连续旋转爆震推进的可行性，在直连式试验台上开展了连续旋转爆震试验。采用三组元空气加热器模拟吸气式推进时的高总温来流，其设计流量600g/s，总温860K。采用热射流切向喷注的方法成功起爆了H2/air连续旋转爆震波，并实现了稳定自持传播。在H2/air当量比为0.86时，连续旋转爆震波以单个波头的同向传播模态传播，且其未影响到空气加热器的正常工作。爆震波的传播频率为3.68kHz，与高频压力FFT分析所得的主频3.67kHz吻合较好；爆震波传播速度为1248m/s。在未测量高频压力的情况下开展了长程试验，结果表明，在高总温来流条件下，连续旋转爆震波也可以在更长时间范围内稳定工作。

关键词: 连续旋转爆震；爆震推进；吸气式推进；验证试验

Abstract: Experiments were performed on a direct-connect experimental facility to validate the working feasibility of continuous rotating detonation (CRD) in the airbreathing mode. A tripropellant air-heater was used to produce vitiated air，and its designed mass flow rate and total temperature were 600g/s and 860K，respectively. CRD were realized and sustained with H2 and vitiated air，using a pre-detonator tangent to the detonation combustor for detonation initiation. It is found that one detonation wave propagates in the one direction mode (ODM) in the detonation combustor，with H2/air equivalence ratio of 0.86，and the operation of the air-heater is not affected by the CRD. The average propagation frequency based on the measured high-frequency pressure is 3.68 kHz，in good agreement with the dominant frequency of 3.67 kHz based on FFT. The propagation velocity is 1248 m/s correspondingly. A long-duration CRD experiment without high-frequency pressure acquisition was carried out，and it was demonstrated that the CRD can propagate continuously for a long time under high total temperature air.

Key words: Continuous rotating detonation；Detonation propulsion；Air-breathing propulsion；Validating experiment

王超,刘卫东,刘世杰,蒋露欣,林志勇. 高总温来流下的连续旋转爆震验证试验[J]. 推进技术, 2016, 37(3): 578-584.

WANG Chao,LIU Wei-dong,LIU Shi-jie,JIANG Lu-xin,LIN Zhi-yong. Validating Experiment of Continuous Rotating Detonation[J]. Journal of Propulsion Technology, 2016, 37(3): 578-584.

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