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论文:2012,Vol:30,Issue(2):222-226 |
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引用本文： |
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王晓娟, 张纪华, 张宇文. 通气量突变对通气超空泡形态影响的试验研究[J]. 西北工业大学 |
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Wang Xiaojuan, Zhang Jihua, Zhang Yuwen. Experimental Study of Supercavity Shape under Sudden Change of Ventilation[J]. Northwestern polytechnical university |
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| 通气量突变对通气超空泡形态影响的试验研究 |
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| 王晓娟, 张纪华, 张宇文 |
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| 西北工业大学 航海学院,陕西 西安 710072 |
| 摘要: |
| 为研究通气流量突变对超空泡形态的影响,在高速水洞实验室进行了系列通气超空泡生成、维持和通气流量突变对空泡形态的试验研究。结果表明:①生成超空泡的通气流量与维持相应空泡形态的通气流量相差很大,此次研究所用模型生成空泡所需最小通气量是维持空泡所需最小通气量的2.616倍左右。②超空泡生成后,通气流量的突变对空泡形态、泄气方式和稳定性均有重要影响。文章研究结论可为进一步研究超空化的工程应用提供参考。 |
| 关键词:
超空化
空泡生成
空泡维持
临界通气量
水洞试验
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| Experimental Study of Supercavity Shape under Sudden Change of Ventilation |
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| Wang Xiaojuan, Zhang Jihua, Zhang Yuwen |
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| College of Marine Engineering,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| In order to study the supercavity shape under sudden change of ventilation, we conduct a series of exper-imental studies, using the high-speed water tunnel in NWPU. Sections 1 and 2 of the full paper explain our experi-mental study. Section 1 briefs our experimental setup and model as shown in Fig. 1. Section 2 sums up the experi-mental results as given in Tables 1 and 2 and Figs. 3 through 8 and then analyzes them. Section 3 gives two prelim-inary conclusions, whose core consists of: ① the ventilation volume needed for supercavity generation and that nee-ded for maintaining the corresponding supercavity shape vary greatly; the minimum ventilation volume needed forgenerating supercavities with our model is 2. 616 times the minimum ventilation volume needed for maintaining thesame number of supercavities; ② the sudden change of ventilation has a major impact on the supercavity shape, gas leak and the stability of the supercavity. |
| Key words:
cavitation
experiments
leakage(fluid)
models
stability
tunnels
ventilation;high-speed watertunnel
supercavity generation
supercavity maintenance
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| 收稿日期: 2011-05-22
修回日期:
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| DOI: |
| 通讯作者:
Email： |
| 作者简介: 王晓娟(1963-),女,西北工业大学副教授、博士,主要从事机械工程与流体机械的研究。
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