脉冲燃烧风洞与连续燃烧风洞数据相关性研究 |
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引用本文: | 吴颖川,贺元元,张小庆,林其,乐嘉陵.脉冲燃烧风洞与连续燃烧风洞数据相关性研究[J].实验流体力学,2018,32(3):58-63. |
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作者姓名: | 吴颖川 贺元元 张小庆 林其 乐嘉陵 |
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作者单位: | 中国空气动力研究与发展中心超高速空气动力研究所 高超声速冲压发动机技术重点实验室, 四川 绵阳 621000 |
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摘 要: | 燃烧加热风洞是目前开展超燃冲压发动机地面模拟试验的主要设备。燃烧加热风洞的试验时间(脉冲式和连续式)及燃烧方式(氢-氧燃烧、碳氢-氧燃烧)均会对发动机试验结果产生一定影响。研究了氢-氧燃烧脉冲风洞与氢-氧燃烧连续风洞、酒精-氧气燃烧连续风洞的数据相关性。研究表明:对于同为氢-氧燃烧的脉冲风洞和连续风洞,在相同试验状态下,发动机推进流道压力系数分布规律一致,连续风洞试验的燃烧室压力高于脉冲风洞试验值,连续风洞的发动机推力收益比脉冲风洞高10%左右;对于氢-氧燃烧脉冲风洞和酒精-氧气燃烧连续风洞,发动机推进流道压力系数分布规律一致,连续风洞试验的燃烧室压力高于脉冲风洞试验值,连续风洞的发动机推力收益比脉冲风洞高5%左右。
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关 键 词: | 超燃冲压发动机 燃烧加热脉冲风洞 燃烧加热连续风洞 数据相关性 氢-氧燃烧 酒精-氧气燃烧 |
收稿时间: | 2018-01-18 |
Analysis of data correlation between impulse and continuous combustion heated facilities |
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Institution: | Science and Technology on Scramjet Laboratory, Hypervelocity Aerodynamics Institute of China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China |
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Abstract: | The comparison tests of impulse and continuous combustion heated facilities were conducted. For Hydrogen-Oxygen combustion heated impulse and continuous facilities, the pressure coefficient distributions of the engine flow path were coincident but the engine thrust gain in continuous facility was 10% larger than that in the impulse facility. For Hydrogen-Oxygen combustion heated impulse facility and Alcohol-Oxygen combustion heated continuous facility, the pressure coefficient distributions of the engine flow path were coincident but the engine thrust gain in continuous facility was 5% larger than that in the impulse facility. |
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