栅格翼空化干扰水动力建模研究

陈玮琪; 夏艳艳; 王宝寿; 颜开

doi:10.3879/j.issn.1000-0887.2016.02.010

栅格翼空化干扰水动力建模研究

doi: 10.3879/j.issn.1000-0887.2016.02.010

中国船舶科学研究中心, 水动力学重点实验室, 江苏无锡 214082

基金项目: 水动力学重点实验室基金（9140C220204110C2203）

详细信息

作者简介:
陈玮琪（1971—），男，研究员，博士(通讯作者. E-mail: tiger_cwq@aliyun.com).

中图分类号: O352;O302
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- 被引次数: 0
出版历程
- 收稿日期: 2015-09-05
- 修回日期: 2015-12-17
- 刊出日期: 2016-02-15

Modeling of Hydrodynamics for Grid Fins With Cavitating Interference

Laboratory of Science and Technology on Hydrodynamics,China Ship Scientific Research Center, Wuxi, Jiangsu 214082, P.R.China

摘要

摘要: 对水下超空泡栅格翼水动力进行了研究.分析了叶片数、叶片间距、叶片厚度、叶片攻角和空化数对栅格翼水动力的影响.揭示了叶片间隙中的空泡流动对水动力的干扰机理.建立了超空泡栅格翼水动力数学模型，并用实验结果进行了验证.最后基于模型解释了实验中发现的栅格翼水动力变化规律.
- 栅格翼 /
- 超空泡 /
- 水动力
Abstract: The supercavitating flow hydrodynamics of grid fins of flat plates was addressed, and the effects on the grid fins’ hydrodynamic performances by different parameters including the grid fin plate number, the spacings between plates, the plate thickness, the attack angle and the cavitation number, were analyzed. A new hydrodynamic model for supercavitating grid fins was built and validated with experimental results. The hydrodynamic interference mechanism of the cavitating flow between the plates was explored and the experimental phenomena was explained. The results given by the proposed model with the numerical and experimental simulation show that, although the increase of the grid fin’s plate number promotes the lift force and drag force, the consequent decrease of the plate spacings, even down to the cavity thickness, will cause severe cavitating interference to weaken the hydrodynamic performances of the grid fin. Therefore, for a grid fin with certain sizes, the plate number has an optimal value.
- grid fin /
- supercavity /
- hydrodynamics

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参考文献(6)

[1]	姚琰, 罗金玲, 毛鸿羽. 栅格翼水洞测力[C]//近代空气动力学研讨会论文集. 北京: 中国宇航出版社, 2005: 274-280.(YAO Yan, LUO Jing-lin, MAO Hong-yu. Force measurement in water tunnel for grid fins[C]// The Modern Aerodynamics Symposium Proceedings.Beijing: China Aerospace Press, 2005: 274-280.(in Chinese))
[2]	黄涛, 吴磊, 鲁传敬, 李杰. 栅格翼和雷体组合体的空泡水动力计算与分析[J]. 水动力力学研究与进展, 2006,21(2): 239-243.(HUANG Tao, WU Lei, LU Chuan-jing, LI Jie. Cavitating grid fin hydrodynamics for missile applications[J]. Journal of Hydrodynamics,2006,21(2): 239-243.(in Chinese))
[3]	Terentiev A G, Kirschner I N, Uhlman J S, Terentiev A G.The Hydrodynamics of Cavitating Flows [M]. USA: Backbone Publishing Company, 2011.
[4]	夏艳艳, 陈玮琪, 王宝寿. 一种新型水下栅格翼的空泡水动力试验[J]. 鱼雷技术, 2014,22(5): 321-328.(XIA Yan-yan, CHEN Wei-qi, WANG Bao-shou. Cavitation hydrodynamic test for a new grid fin in water tunnel[J].Torpedo Technology,2014,22(5): 321-328.(in Chinese))
[5]	Wu T Y-T. A free streamline theory for two-dimensional fully cavitated hydrofoils[J].Journal of Mathematics and Physics,1956,35(1): 236-265.
[6]	Tulin M P. Supercavitating flows-small perturbation theory[J].Journal of Ship Research,1964,7(3): 16-37.