Influence of Combination Modes on Gas-Assisted Transverse Injection
An in-depth study of fuel injection atomization in the expanded configuration under supersonic inflow conditions is extremely important for developing air-breathing rotating detonation engines. Combinations of H2-assisted transverse jets designed to enhance penetration depth of liquid and gas jets w...
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| Format: | Article |
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China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases
2025-05-01
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| Series: | 气体物理 |
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| Online Access: | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1141 |
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| author | Chenglong YAN Gangqiang WU Chuanjin JIANG Geng LI Kangkang GUO Ruirui BAO Wei LIN |
| author_facet | Chenglong YAN Gangqiang WU Chuanjin JIANG Geng LI Kangkang GUO Ruirui BAO Wei LIN |
| author_sort | Chenglong YAN |
| collection | DOAJ |
| description | An in-depth study of fuel injection atomization in the expanded configuration under supersonic inflow conditions is extremely important for developing air-breathing rotating detonation engines. Combinations of H2-assisted transverse jets designed to enhance penetration depth of liquid and gas jets were investigated via Euler-Lagrange simulation method. The flow field structure and the enhancement mechanism of liquid jet atomization under the gas-liquid and liquid-gas combination modes were intensely studied. The hydrogen distribution and the atomization characteristics of the transverse liquid jet under other combinations were also summarized. Results show that H2 and liquid spray distribution produces inconsistent characteristics under different combination methods. Related aggregation phenomena of liquid spray can be corrected by changing the combination method. When the static temperature of incoming flow is high enough, the gas-liquid combination mode is recommended; otherwise, the liquid-gas combination mode based on active fuel such as H2 is recommended. The gas-liquid distance has little effect on the breakup of droplets. However, the larger the gas-liquid distance, the lower the penetration depth of the liquid jet. The same time, a prominent empty flow area appears on the lower wall surface. Results also show that the recommended gas-liquid spacing is 5 mm in the gas-liquid combination mode. The breakup of droplets under the gas-liquid combination is mainly caused by the shearing effect of the downwash flow field, and the liquid-gas combination is mainly due to the shearing effect of the upwash flow field. |
| format | Article |
| id | doaj-art-7965b511d83c40fb83097e3f18de941f |
| institution | OA Journals |
| issn | 2096-1642 |
| language | zho |
| publishDate | 2025-05-01 |
| publisher | China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases |
| record_format | Article |
| series | 气体物理 |
| spelling | doaj-art-7965b511d83c40fb83097e3f18de941f2025-08-20T02:01:28ZzhoChina Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases气体物理2096-16422025-05-01103617210.19527/j.cnki.2096-1642.1141qtwl-10-3-61Influence of Combination Modes on Gas-Assisted Transverse InjectionChenglong YAN0Gangqiang WU1Chuanjin JIANG2Geng LI3Kangkang GUO4Ruirui BAO5Wei LIN6Department of Aerospace Science and Technology, Space Engineering University, Beijing 101416, ChinaDepartment of Aerospace Science and Technology, Space Engineering University, Beijing 101416, ChinaDepartment of Aerospace Science and Technology, Space Engineering University, Beijing 101416, ChinaDepartment of Aerospace Science and Technology, Space Engineering University, Beijing 101416, ChinaDepartment of Aerospace Science and Technology, Space Engineering University, Beijing 101416, ChinaDepartment of Aerospace Science and Technology, Space Engineering University, Beijing 101416, ChinaDepartment of Aerospace Science and Technology, Space Engineering University, Beijing 101416, ChinaAn in-depth study of fuel injection atomization in the expanded configuration under supersonic inflow conditions is extremely important for developing air-breathing rotating detonation engines. Combinations of H2-assisted transverse jets designed to enhance penetration depth of liquid and gas jets were investigated via Euler-Lagrange simulation method. The flow field structure and the enhancement mechanism of liquid jet atomization under the gas-liquid and liquid-gas combination modes were intensely studied. The hydrogen distribution and the atomization characteristics of the transverse liquid jet under other combinations were also summarized. Results show that H2 and liquid spray distribution produces inconsistent characteristics under different combination methods. Related aggregation phenomena of liquid spray can be corrected by changing the combination method. When the static temperature of incoming flow is high enough, the gas-liquid combination mode is recommended; otherwise, the liquid-gas combination mode based on active fuel such as H2 is recommended. The gas-liquid distance has little effect on the breakup of droplets. However, the larger the gas-liquid distance, the lower the penetration depth of the liquid jet. The same time, a prominent empty flow area appears on the lower wall surface. Results also show that the recommended gas-liquid spacing is 5 mm in the gas-liquid combination mode. The breakup of droplets under the gas-liquid combination is mainly caused by the shearing effect of the downwash flow field, and the liquid-gas combination is mainly due to the shearing effect of the upwash flow field.http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1141supersonic flowtransverse injectioncombination modesatomization characteristics |
| spellingShingle | Chenglong YAN Gangqiang WU Chuanjin JIANG Geng LI Kangkang GUO Ruirui BAO Wei LIN Influence of Combination Modes on Gas-Assisted Transverse Injection 气体物理 supersonic flow transverse injection combination modes atomization characteristics |
| title | Influence of Combination Modes on Gas-Assisted Transverse Injection |
| title_full | Influence of Combination Modes on Gas-Assisted Transverse Injection |
| title_fullStr | Influence of Combination Modes on Gas-Assisted Transverse Injection |
| title_full_unstemmed | Influence of Combination Modes on Gas-Assisted Transverse Injection |
| title_short | Influence of Combination Modes on Gas-Assisted Transverse Injection |
| title_sort | influence of combination modes on gas assisted transverse injection |
| topic | supersonic flow transverse injection combination modes atomization characteristics |
| url | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1141 |
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