Experimental investigation of thrust augmentation by ejectors on a pulse detonation engine
| العنوان: | Experimental investigation of thrust augmentation by ejectors on a pulse detonation engine |
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| المؤلفون: | Xi-qiao Huang, Zhuo Guo, Longxi Zheng, Moqi Li |
| المصدر: | Thermal Science, Vol 19, Iss 6, Pp 2105-2114 (2015) |
| بيانات النشر: | VINCA Institute of Nuclear Sciences, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Pulse detonation engine, geography, geography.geographical_feature_category, Materials science, pulse detonation engine, thrust augmentation, Renewable Energy, Sustainability and the Environment, lcsh:Mechanical engineering and machinery, Operating frequency, Detonation, Thrust, Injector, Mechanics, Inlet, law.invention, law, ejectors, Inner diameter, Tube (fluid conveyance), lcsh:TJ1-1570 |
| الوصف: | Utilizing gasoline as the fuel, air as oxidizer, a series of multi-cycle detonation experiments was conducted to study thrust augmentation by PDE-driven ejectors. The straight cylindrical ejectors with different inner diameter, length and inlet geometry were designed. The effects of the axial location of the ejectors relative to the end of the detonation tube, ejector length-to-diameter ratio on thrust augmentation were investigated, with the operating frequency of 25 Hz. A peak thrust augmentation level of 80.5% was achieved by adding an ejector to the exit of the detonation tube. Performance measurements of the PDE-ejector system showed that thrust augmentation is a strong function of the ejector axial position. The result indicated that there exists a maximum thrust augmentation with ejector upstream of the detonation tube exit at least. The exact location at which the maximum thrust augmentation was obtained varies with the ejector-to-PDE diameter ratio and the ejector inlet geometry. With the increase of the length-to-diameter ratio, thrust augmentation was noticeably enhanced and finally tended to a constant. There exists an optimum ejector length. In the present study, the optimum length-to-diameter ratio of ejector was 4.58. Furthermore, the effect of operating frequency on ejector thrust augmentation also investigated. The operating frequency was varied from 15 Hz to 35 Hz. |
| اللغة: | English |
| تدمد: | 2334-7163 0354-9836 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56482b86680698698f31150eb3520e28 http://www.doiserbia.nb.rs/img/doi/0354-9836/2015/0354-98361500066H.pdf |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....56482b86680698698f31150eb3520e28 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 23347163 03549836 |
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