| 小攻角下水下高速航行体超空泡流特性研究 |
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| 引用本文： | 熊天红,易文俊,吴军基,刘怡昕.小攻角下水下高速航行体超空泡流特性研究[J].舰船科学技术,2009,31(5). |
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| 作者姓名： | 熊天红 易文俊 吴军基 刘怡昕 |
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| 作者单位： | 南京理工大学,瞬态物理国家重点实验室,江苏,南京,210094 |
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| 摘 要： | 为研究小攻角下水下高速航行体超空泡形态及水动力特性,利用商业CFD软件Fluent6.2,对小攻角下高速航行体超空泡流进行数值模拟,分析了空化数、攻角对水下高速航行体空泡形态以及水动力特性的影响规律.研究表明,攻角为能够明显改变空泡形态的轴对称性;攻角越大,航行体的阻力系数也增大,不利于超空泡的减阻,甚至会导致航行体的失稳.研究结果将为开展水下高速航行体超空泡实验研究提供理论参考.
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| 关 键 词： | 高速航行体 空泡流 超空泡形态 水动力特性 |
Investigation on characteristic of supercaviting flow around underwater highspeed vehicle at small angle of attack |
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| XIONG Tian-hong,YI Wen-jun,WU Jun-ji,LIU Yi-xin.Investigation on characteristic of supercaviting flow around underwater highspeed vehicle at small angle of attack[J].Ship Science and Technology,2009,31(5). |
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| Authors: | XIONG Tian-hong YI Wen-jun WU Jun-ji LIU Yi-xin |
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| Abstract: | In order to investigate the supercavity form and the hydrodynamic characteristic of highspeed vehicle,cavitating flow at small angel of attack around highspeed vehicle was investigated by numerical simulation using the commercial CFD software Fluent6.2. The influence of cavitation number,angle of attack on the supercavity form and the hydrodynamic characteristic of underwater highspeed vehicle was analyzed. The results show that angle of attack can obvious change axial symmetry of cavity form.The bigger ang... |
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| Keywords: | highspeed vehicle cavitating flow supercavity form hydrodynamic characteristic |
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