| 绕空化器通气空化流场的实验研究 |
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| 引用本文： | 张敏弟,邵峰,郭善刚,王国玉.绕空化器通气空化流场的实验研究[J].工程热物理学报,2011(10):1673-1676. |
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| 作者姓名： | 张敏弟 邵峰 郭善刚 王国玉 |
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| 作者单位： | 北京理工大学机械与车辆工程学院;北京航天动力研究所; |
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| 基金项目： | 国家自然科学基金资助项目(No.50679001); 北京理工大学优秀青年教师资助计划(No.2006Y0308) |
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| 摘 要： | 本文采用高速全流场显示技术和动态应变式测力系统相结合研究了绕圆盘空化器通气空化流动发展过程和动力特性,讨论了通气量对空化流场形态和阻力的影响。结果表明：随着雷诺数增加,绕空化器的通气空化流场经历了初生空化、带状空化、团状空化,阻力系数不断减小,未发生自然空化时,减阻效果明显;随着通气量增加,绕空化器通气空化流场出现了半...
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| 关 键 词： | 空化 通气空化 圆盘空化器 高速全流场显示技术 动态应变测力技术 |
An Experimental Study on Ventilation Cavitation Around a Cavitator |
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| ZHANG Min-Di SHAO Feng GUO Shan-Gang WANG Guo-Yu.An Experimental Study on Ventilation Cavitation Around a Cavitator[J].Journal of Engineering Thermophysics,2011(10):1673-1676. |
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| Authors: | ZHANG Min-Di SHAO Feng GUO Shan-Gang WANG Guo-Yu |
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| Institution: | ZHANG Min-Di~1 SHAO Feng~1 GUO Shan-Gang~2 WANG Guo-Yu~1 (1.School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100080,China,2.Beijing Aerospace Propulsion Institute,Beijing 100176,China) |
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| Abstract: | Ventilation cavitation flow around a disc cavitator and its drag characteristics were experimentally studied by applying the combinant technologies of high speed visualization and strain-electronic measuring technology.The effects of ventilation on cavitation flow and drag are discussed systematically.The results show that there are three phases of incipient cavitation,band cavitation and grouping cavitation in ventilation cavitating flow regimes,and the drag coefficient of the disc cavitator decreases sign... |
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| Keywords: | cavitation ventilation cavitation disc cavitator high speed flow visualization strainelectronic measuring technology |
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