无空化雷头设计及CFD性能分析校验

靳栓宝; 王永生; 杨琼方

doi:10.11993/j.issn.1673-1948.2010.01.001

无空化雷头设计及CFD性能分析校验

doi: 10.11993/j.issn.1673-1948.2010.01.001

海军工程大学船舶与动力学院,湖北武汉, 430033

基金项目: 部级国防科研基金项目资助，海军工程大学校长基金项目资助（E450)

详细信息

作者简介:
靳栓宝（1983-) ，男，在读硕士，研究方向为舰船新型推进技术.

中图分类号: TJ630.2
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- 被引次数: 0
出版历程
- 收稿日期: 2009-06-30
- 修回日期: 2009-10-12
- 刊出日期: 2010-02-28

Design of Torpedo Head without Cavitation and Performance Analysis Based on Computational Fluid Dynamics

College of Naval Architecture and Marine Power, Naval University of Engineering, Wuhan 430033, China

摘要

摘要: 利用等强度线源与平行流叠加法设计流线型鱼雷头部外形，使鱼雷头部表面最大减压系数小于空泡数，设计出无空化鱼雷头部轮廓线型。运用流体力学理论分析法求得该鱼雷头部表面的压力分布及最大减压系数，并用计算流体力学（CFD）方法（加空化模型）对所设计雷头进行数值模拟。CFD计算得到的鱼雷头部表面的压力分布与理论公式值相比较，误差在1%以内,验证了数值模型的准确性。最后运用CFD后处理技术，显示设计雷头空化情况，可以看出无空化产生，即验证了所设计雷头的无空化性能。
- 鱼雷 /
- 流体力学 /
- 外形设计 /
- 空化 /
- 数值模拟 /
- 计算流体力学（CFD)
Abstract: The superposition of the equal intension of linear source and parallel flow is applied to the shape design of streamline profile of torpedo head to make the maximum pressure reduction coefficient of the torpedo head smaller than cavitation number, therefore the shape of torpedo head without cavitation is designed. The distribution of pressure and the maximum pressure reduction coefficient of the torpedo head are obtain with the theory of hydrodynamics. Then computational fluid dynamics (CFD) and a cavitation model are employed to simulate the performance of the torpedo head. The CFD calculation of pressure distribution on the torpedo head shows an error less than 1% compared with the theoretical result, indicating that the CFD method is valid. In addition, CFD post-processing technology is used to display the cavitation of the torpedo head, demonstrating no cavitation at all. That is to say, the designed torpedo head meet the qualification of no cavitation.
- torpedo /
- hydromechanics /
- shape design /
- cavitation /
- numerical simulation /
- computational fluid dynamics(CFD)

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参考文献(6)

[1]	龚光寅.雷头空化噪声特性［J］.舰船科学技术,1990,12 (3) : 38-41. Gong G Y.Cavitation Noise Characteristics of the Head of Torpedo［J］.Warship Technology 1990,12 (3) : 38-41.
[2]	黄震中,刘德明.鱼雷总体设计［M］.西安：西北工业大学出版社，1987.
[3]	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.
[4]	王福军.计算流体力学分析-CFD软件原理与应用［M］. 北京：清华大学出版社，2006.
[5]	Abdel-maksoud M, Heinke H J. Scale Effects on Ducted Propellers［C］// 24th Symposium on Navy Hydrodynamics, 2002, Fukuoka, Japan. Washington D.C: The National Academies Press, 2003: 744-759.
[6]	Lloyd G, Espanoles A. Best Practice Guidelines for Marine Applications of Computational Fluid Dynamics［R］. WS Atkins Consultants and Members of the NSC, MARNET-CFD Thernatic Network, 2002.