小攻角下的水中引信前置涡轮转动特性和空化研究

doi:10.3969/j.issn.1000-1093.2014.05.007

兵工学报 ›› 2014, Vol. 35 ›› Issue (5): 620-626.doi: 10.3969/j.issn.1000-1093.2014.05.007

小攻角下的水中引信前置涡轮转动特性和空化研究

陈勇¹，张合¹，马少杰¹，沈德璋²

(1.南京理工大学智能弹药技术国防重点学科实验室, 江苏南京 210094;2.中国工程物理研究院电子工程研究所，四川绵阳 621900)

收稿日期:2013-08-19 修回日期:2013-08-19 上线日期:2014-06-23
通讯作者: 陈勇 E-mail:lyhho@qq.com
作者简介:陈勇（1989—），男，博士研究生
基金资助:
国家自然科学基金项目（51275248）； “十二五”兵器支撑项目（62201040603）；江苏省普通高校研究生科研创新计划〓〓〓项目（CXZZ13_0190）

Research on Rotation Characteristics and Cavitation of Underwater Turbine at Small Attack Angle

CHEN Yong¹, ZHANG He¹, MA Shao-jie¹, SHEN De-zhang²

(1.Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology，Nanjing 210094，Jiangsu，China;2.Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China)

Received:2013-08-19 Revised:2013-08-19 Online:2014-06-23
Contact: CHEN Yong E-mail:lyhho@qq.com

摘要/Abstract

摘要： 为了获得小攻角下水中引信前置涡轮的转动特性，理论分析了小攻角下涡轮的转动情况，并建立了仿真模型和试验方案。以此为基础，针对0°攻角和5°攻角，获取了0~35 m/s来流速度下的涡轮转速。在10 m/s来流速度下，针对无空化以及空化数为0.2~1.0的情况，利用仿真和试验结果对比分析了0°攻角和5°攻角下相应的涡轮转动和空化特性。研究结果表明，仿真结果与试验结果基本一致，较好地预测了涡轮的特性。与0°攻角情况下相比，在较低来流速度（小于20 m/s）下，5°攻角情况下的涡轮转速偏大，高速下反之；在发生空化时，5°攻角情况下的涡轮失去了原有转速信号的周期性变化，并在更低的空化数下停转。

关键词: 兵器科学与技术, 引信涡轮, 水洞试验, 流场仿真, 小攻角, 空化

Abstract: The rotation of turbine at small attack angle is theoretically analyzed in order to obtain the rotation characteristics of a turbine in front of an underwater fuze at small attack angle, and the simulation models and an experimental program are created. On this basis, the turbine speed at flow velocity of 0 m/s~ 35 m/s is obtained at 0° and 5°attack angles. For the non-cavitation and the cavitation number from 0.2 to 1.0, the corresponding characteristics of the turbine rotation and cavitation at 10m/s are analyzed by comparing the simulation and experimental results at 0° and 5°attack angles. The results show that the simulation and experimental results are basically consistent and well predict the turbine characteristics. Compared with 0°attack angle, the turbine speed at 5° attack angle becomes higher at lower flow velocity and vice versa; under cavitation, the periodical change of original speed signal of turbine disappears at 5°attack angle, and the turbine stalls in the case of lower cavitation number.

Key words: ordnance science and technology, fuze turbine, water tunnel experiment, fluid simulation, small attack angle, cavitation

中图分类号:

TF43

陈勇，张合，马少杰，沈德璋. 小攻角下的水中引信前置涡轮转动特性和空化研究[J]. 兵工学报, 2014, 35(5): 620-626.

CHEN Yong, ZHANG He, MA Shao-jie, SHEN De-zhang. Research on Rotation Characteristics and Cavitation of Underwater Turbine at Small Attack Angle[J]. Acta Armamentarii, 2014, 35(5): 620-626.

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小攻角下的水中引信前置涡轮转动特性和空化研究

Research on Rotation Characteristics and Cavitation of Underwater Turbine at Small Attack Angle

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