航天推进技术研究院主办
[1]莫建伟,严宇,杨建文.旋转爆震反压扰动下超声速进气道流动特性数值分析[J].火箭推进,2022,48(06):85-91.
MO Jianwei,YAN Yu,YANG Jianwen.Numerical study on flow characteristics of supersonic inlet disturbed by backpressure of rotating detonation[J].Journal of Rocket Propulsion,2022,48(06):85-91.
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MO Jianwei,YAN Yu,YANG Jianwen.Numerical study on flow characteristics of supersonic inlet disturbed by backpressure of rotating detonation[J].Journal of Rocket Propulsion,2022,48(06):85-91.
旋转爆震反压扰动下超声速进气道流动特性数值分析
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
48
期数:
2022年06期
页码:
85-91
栏目:
目次
出版日期:
2022-12-25
- Title:
- Numerical study on flow characteristics of supersonic inlet disturbed by backpressure of rotating detonation
- 文章编号:
- 1672-9374(2022)06-0085-07
- 关键词:
- 超声速进气道 周期性旋转反压 流动特性
- 分类号:
- V211.3
- 文献标志码:
- A
- 摘要:
- 为了研究超声速进气道在旋转反压作用下的流动特性,建立了旋转爆震发动机周期性反压简化模型,以双下侧进气道为研究对象,采用非定常数值仿真手段开展了旋转爆震反压作用下进气道内流动特性仿真。结果表明:在进气道出口畸变流动条件下,周期性旋转反压作用下的进气道内压力波面呈现不规则螺旋状,与均匀来流隔离段内规则螺旋状流动存在一定差异 旋转反压在两侧进气道交汇处受到阻断,两侧进气道在交汇截面之前趋于稳定流动,周期性反压和稳态反压对应的进气道激波串前缘位置基本一致,说明进气道周期性反压作用下性能与稳态情况下一致。
- Abstract:
- In order to study the flow characteristics of the rotating detonation engine inlet under the action of rotating back pressure,a simplified model of the periodic backpressure of the rotating detonation engine was established, and the unsteady numerical simulation method was used to study the flow characteristics of the twin inlet under the action of rotating detonation back pressure.The results show that the iso-pressure surface of the flowfield presents an irregular spiral shape under the action of periodic rotating back pressure with the distorted flow condition,which is different from the flow characteristic in the isolation section of uniform inlet flow.The rotating pressure wave is blocked at the intersection of the two ducts, and the flow of two ducts tends to be steady before the intersection section.The leading edge of the shock train at the end of the inlet is basically the same under periodic rotating back pressure and steady state back pressure, indicating that the performance under the periodic backpressure of the inlet is not different from that under the steady-state condition.
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备注/Memo
收稿日期:2021-10-26 修回日期:2021-11-17
基金项目:国家自然科学基金项目(11602186)
作者简介:莫建伟(1986—),男,博士,高级工程师,研究领域为内流气动动力学。
更新日期/Last Update:
1900-01-01