不同外形空化器绕回转体超空化特性试验研究

王 瑞; 党建军; 姚 忠

doi:10.11993/j.issn.2096-3920.2019.01.004

不同外形空化器绕回转体超空化特性试验研究

doi: 10.11993/j.issn.2096-3920.2019.01.004

王瑞^1,2,
党建军¹,
姚忠²

1.
西北工业大学航海学院, 陕西西安, 710072
2.
西北机电工程研究所, 陕西咸阳, 712099

基金项目: 国家自然科学基金项目(51579209); 青年托举工程(2016QRNC001)

详细信息

作者简介:
王瑞(1984-), 男, 在读博士, 主要研究方向为超空泡射弹武器技术.

中图分类号: TJ630.1; O35
计量
- 文章访问数: 546
- HTML全文浏览量: 9
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- 被引次数: 0
出版历程
- 收稿日期: 2018-08-22
- 修回日期: 2018-09-12
- 刊出日期: 2019-02-28

Experimental Study on Supercavitation Characteristics around Axisymmetric Body with Different Shape Cavitators

1.
School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
2.
Northwest Institute of Mechanical & Electrical Engineering, Xianyang 712099, China

摘要

摘要: 为获得头型空化器参数对超空化流场特性的影响规律, 依托高速水洞试验平台, 采用高速流动显示技术与三分测力天平测力技术相结合, 研究不同形状空化器对绕回转体超空泡特性的影响。文中针对4种不同形状的空化器, 采用人工通气的方法在回转体周围形成超空化流动, 获得不同工况条件下绕回转体的空泡形态及阻力波动。研究结果表明, 不同外形空化器均能形成稳定透明的空泡; 同一种外形的空化器,来流速度越高, 获得的空泡尺度越大; 沉凹形空化器阻力系数最大, 截锥型空化器阻力系数次之, 倒锥形空化器阻力系数最小。文中研究结论可为超空泡射弹头部外形设计及流体动力布局设计提供参考和依据。
- 空化器 /
- 回转体 /
- 超空化 /
- 高速水洞试验 /
- 空泡
Abstract: To obtain the influence of head-shaped cavitator parameters on the characteristics of supercavitation flow field, the high-speed flow display technology and the force measuring technology with three-point force balance are employed to study the effect of cavitator with different shapes on the supercavitation characteristics of axisymmetric body on the high-speed water tunnel test platform. Supercavitation flows around the axisymmetric body are generated via artificial ventilation by the cavitators with four shapes. The cavity morphology and resistance fluctuation around the axisymmetric body under different working conditions are obtained. Results show that each cavitator can form stable and transparent cavity. For the cavitator with a certain shape, the higher the velocity of incoming flow is, the larger the cavity size becomes. According to the drag coefficient, the descending order is the concave-shaped cavitator, the truncated cone-shaped cavitator, the disk-shaped cavitator, and the inverted cone-shaped cavitator. This research may provide a reference for the head shape design of supercavitating projectile and the design of hydrodynamic layout.
- cavitator /
- axisymmetric body /
- supercavitation /
- high-speed water tunnel test /
- cavity

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参考文献(14)

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