超空泡航行器流体动力CFD计算

李雨田

doi:10.11993/j.issn.1673-1948.2015.04.003

超空泡航行器流体动力CFD计算

doi: 10.11993/j.issn.1673-1948.2015.04.003

李雨田

中国船舶重工集团公司第710研究所, 湖北宜昌, 443003

详细信息

作者简介:
李雨田(1981-), 男, 博士, 主要从事水下航行器流体动力研究.

中图分类号: TJ630.1; O353
计量
- 文章访问数: 1037
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- 被引次数: 0
出版历程
- 收稿日期: 2015-04-24
- 修回日期: 2015-05-28
- 刊出日期: 2015-08-20

Calculation of Hydrodynamic Characteristics of Supercavity Vehicle with CFD Method

LI Yu-tian

The 710 Research Institute, China Shipbuilding Industry Corporation, Yichang 443003, China

摘要

摘要: 超空泡航行器运动在超空化流动模式下, 流场内涉及固、液、气3种介质, 空泡与航行器相互耦合作用极为复杂。文中给出了超空泡航行器减阻特性、非线性、非定常与不确定性、流体惯性力较小4种典型流体动力特性, 揭示了超空泡航行状态下航行器的流体力学本质。通过仿真计算, 得到了空泡外形随空化数、攻角、舵角的变化趋势, 利用计算流体力学(CFD)方法计算给定外形航行器在超空泡流型下的受力情况, 分析了航行器流体动力特性变化, 并给出了影响其变化的相关因素。该研究可为超空泡航行器动力学建模和弹道计算提供参考。
- 超空泡航行器 /
- 空泡外形 /
- 流体动力特性 /
- 计算流体力学(CFD)
Abstract: In the mode of supercavitation, the flow field of an underwater vehicle involves three types of media—— solid, liquid and gas, and the inter-coupling effect of cavity and vehicle is extremely complicated. In this paper, four typical characteristics of fluid dynamics of a supercavity vehicle, i.e. resistance reduction characteristic, nonlinear, unsteady and uncertain, and smaller fluid inertia force, are summarized, and the nature of fluid dynamics for an underwater vehicle in supercavitation is revealed. The cavity shapes are simulated with the changes of cavitation number, angle of attack, and angle of rudder. The method of computational fluid dynamics(CFD) is used to calculate the forces on a supercavity vehicle with given shape under different conditions. The changes of hydrodynamic characteristics of the vehicle, as well as the relevant influencing factors, are analyzed.
- supercavity vehicle /
- cavity shape /
- hydrodynamic characteristic /
- computational fluid dynamics(CFD)

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参考文献(10)

[1]	Savchenko Yu N. Supercavitation-Problems and Perspectives[C]//Fourth International Symposium on Cavitation, California Institute of Technology, Pasadena, CA USA. 2001.
[2]	Semenenko V N. Artificial Supercavitation Physics and Calculation[G]//RTO AVT/VKI Special Course: Supercavitating Flows. Belgium, Rhode-Saint-Genese.: Von Karman Institute for Fluid Dynamics, 2001.
[3]	Savchenko Y N. Experimental Investigation of Supercavitating Motion of Bodies[G]//RTO AVT/VKI Special Course: Supercavitating Flows. Belgium, Rhode-Saint- Genese: Von Karman Institute for Fluid Dynamics, 2001.
[4]	李雨田, 张宇文. 超空泡航行器机动运动研究[D]. 西安: 西北工业大学, 2013.
[5]	李雨田, 张宇文. 空泡外形对超空泡航行器机动回转运动影响[J]. 振动与冲击, 2014, 33(16): 165-170. Li Yu-tian, Zhang Yu-wen. The Influence of Cavity Shape on Maneuvering Rotational Movement of Supercavitating Vehicle[J]. Journal of Vibration and Shock, 2014, 33(16): 165-170.
[6]	黄景泉, 张宇文. 鱼雷流体力学[M]. 西安: 西北工业大学出版社, 1989.
[7]	Vlasenkoz Yu D. Control of Cavity Parameters at Supercavitating Flow[R], AGARD Report, Kiev Ukraine, 1997.
[8]	Kuklinski R. Experimental Study of Ventilated Cavity on Dynamic Test Model[C]//CAV 2001: Session B3.004.
[9]	邓飞, 张宇文. 水下超空泡航行器流体动力设计原理研究[J]. 西北工业大学学报, 2004, 22(6): 806-810. Deng Fei, Zhang Yu-wen. On Hydrodynamic Design of Underwater Supercavitating High Speed Vehicle[J]. Journal of Northwestern Polytechnical University, 2004, 22(6): 806-810.
[10]	邓飞, 张宇文, 超空化航行器原理试验模型结构设计[J]. 机械科学与技术, 2005, 24(4): 434-437. Deng Fei, Zhang Yu-wen. Design of the Test Model for Ventilated Supercavitating High-speed Underwater Vehicles[J]. Mechanlcal Science and Technology, 2005, 24(4): 434-437.