Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines
In this study, the operating modes of the rotating detonation engine (RDE) under various inlet conditions were investigated numerically. It was shown that after the sudden reduction of the inlet total pressure, the resulting decrease of the mass flow rate would require the rotating detonation wave (...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
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China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases
2023-09-01
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| Series: | 气体物理 |
| Subjects: | |
| Online Access: | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1041 |
| _version_ | 1797632620017745920 |
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| author | Song-bai YAO Xin-meng TANG Wen-wu ZHANG |
| author_facet | Song-bai YAO Xin-meng TANG Wen-wu ZHANG |
| author_sort | Song-bai YAO |
| collection | DOAJ |
| description | In this study, the operating modes of the rotating detonation engine (RDE) under various inlet conditions were investigated numerically. It was shown that after the sudden reduction of the inlet total pressure, the resulting decrease of the mass flow rate would require the rotating detonation wave (RDW) to adjust its front height and propagation velocity so that it could maintain self-sustained propagation. However, if the inlet total pressure dropped significantly, the number of RDWs in the flow field would decline to match the new inlet conditions. This would lead to an adaptive mode switching process. The approximate matching relation between the characteristic parameters of the RDWs (wave number, propagation velocity, and front height), the geometry of the combustor, and the inlet conditions (mass flow rate) was verified to explain the operating mode switching process and the underlying mechanisms. |
| first_indexed | 2024-03-11T11:39:28Z |
| format | Article |
| id | doaj.art-48889e630674420e9a87c6502a82fcd8 |
| institution | Directory Open Access Journal |
| issn | 2096-1642 |
| language | zho |
| last_indexed | 2024-03-11T11:39:28Z |
| publishDate | 2023-09-01 |
| publisher | China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases |
| record_format | Article |
| series | 气体物理 |
| spelling | doaj.art-48889e630674420e9a87c6502a82fcd82023-11-10T06:27:31ZzhoChina Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases气体物理2096-16422023-09-0185101810.19527/j.cnki.2096-1642.1041qtwl-8-5-10Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation EnginesSong-bai YAO0Xin-meng TANG1Wen-wu ZHANG2Zhejiang Key Laboratory of Aero Engine Extreme Manufacturing Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaInternational Innovation Center of Tsinghua University, Shanghai 200062, ChinaZhejiang Key Laboratory of Aero Engine Extreme Manufacturing Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaIn this study, the operating modes of the rotating detonation engine (RDE) under various inlet conditions were investigated numerically. It was shown that after the sudden reduction of the inlet total pressure, the resulting decrease of the mass flow rate would require the rotating detonation wave (RDW) to adjust its front height and propagation velocity so that it could maintain self-sustained propagation. However, if the inlet total pressure dropped significantly, the number of RDWs in the flow field would decline to match the new inlet conditions. This would lead to an adaptive mode switching process. The approximate matching relation between the characteristic parameters of the RDWs (wave number, propagation velocity, and front height), the geometry of the combustor, and the inlet conditions (mass flow rate) was verified to explain the operating mode switching process and the underlying mechanisms.http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1041detonation propulsionrotating detonationoperating modemulti-wave phenomenonnumerical simulation |
| spellingShingle | Song-bai YAO Xin-meng TANG Wen-wu ZHANG Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines 气体物理 detonation propulsion rotating detonation operating mode multi-wave phenomenon numerical simulation |
| title | Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines |
| title_full | Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines |
| title_fullStr | Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines |
| title_full_unstemmed | Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines |
| title_short | Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines |
| title_sort | effects of inlet condition variations on the operating modes of rotating detonation engines |
| topic | detonation propulsion rotating detonation operating mode multi-wave phenomenon numerical simulation |
| url | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1041 |
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