| 水下航行体通气超空泡内压强分布实验研究 |
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| 引用本文： | 黄海龙,王聪,黄文虎,李凝.水下航行体通气超空泡内压强分布实验研究[J].哈尔滨商业大学学报(自然科学版),2007,23(2):188-191,221. |
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| 作者姓名： | 黄海龙 王聪 黄文虎 李凝 |
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| 作者单位： | 1. 哈尔滨工业大学,航天学院,哈尔滨,150001
2. 中国船舶重工集团,北京,100085 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 利用循环式空泡水洞,对航行体模型的通气超空泡内压强分布及其对空泡尾部流场的影响情况进行了实验研究.当水流速度在10~20 m/s之间时,采用人工补气的方式生成超空泡.通过改变通气量、水的流场压强等参数测量空泡内多点处的压强,得到超空泡内的压强分布规律.实验表明,超空泡内的压强沿流向呈下降趋势;空泡尾部压力梯度变化很大,从而引起震荡式回注射流的产生,破坏航行体的稳定性.
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| 关 键 词： | 水下航行体 超空泡 压强分布 空泡水洞 |
| 文章编号： | 1672-0946（2007）02-0188-04 |
| 收稿时间： | 2006-07-02 |
| 修稿时间： | 2006-07-02 |
Experimental investigation of pressure distribution in ventilated supercavity of underwater vehicle model |
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| HUANG Hai-long,WANG Cong,HUANG Wen-hu,LI Ning.Experimental investigation of pressure distribution in ventilated supercavity of underwater vehicle model[J].Journal of Harbin University of Commerce :Natural Sciences Edition,2007,23(2):188-191,221. |
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| Authors: | HUANG Hai-long WANG Cong HUANG Wen-hu LI Ning |
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| Institution: | 1. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China; 2. China Ship Scientific Research Center, Beijing 100085, China |
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| Abstract: | A series of experiments about supercavitating flow around underwater vehicle are conducted in a high-speed cavitation water tunnel to investigate the pressure distribution in the supercavity and the properties of rear flow field near the supercavity. The supercavity is filled by air and is related to artificial or ventilated cavity to form supercavitating flow at low speed (V=10～20 m/s). The pressure distribution in the supercavity was found by analyzing and measuring the pressure of several places in supercavity under conditions of various ventilation rate, the hydrostatic pressure p∞ and so on. The result indicates that the pressure in supercavity changes along the stream direction. The pressure gradient at rear of cavitation changes strongly, so the vibration re-entrant jet is caused. Further the re-entrant jet affects the motion stability of underwater vehicle. |
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| Keywords: | underwater vehicle supercavity pressure distribution cavitation water tunnel |
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