[1]陈四春,姜 超,李 军.固体火箭燃气射流冲击载荷的数值与实验研究[J].南京理工大学学报(自然科学版),2015,39(06):698.
 Chen Sichun,Jiang Chao,Li Jun.Numerical and experimental study on impact load of jet flow of solid rocket[J].Journal of Nanjing University of Science and Technology,2015,39(06):698.
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固体火箭燃气射流冲击载荷的数值与实验研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
39卷
期数:
2015年06期
页码:
698
栏目:
出版日期:
2015-12-31

文章信息/Info

Title:
Numerical and experimental study on impact load of jet flow of solid rocket
作者:
陈四春1姜 超2李 军2
1.湖北江山重工有限责任公司 研发中心,湖北 襄阳 441057;
2.南京理工大学 机械工程学院,江苏 南京 210094
Author(s):
Chen Sichun1Jiang Chao2Li Jun2
1.Research and Development Center,Hubei Jiangshan Heavy Industries Co.,Ltd.,Xiangyang 441057,China;
2.School of Mechanical Engineering,NUST,Nanjing 210094,China
关键词:
固体火箭 燃气射流 冲击载荷 数值分析 实验测量
Keywords:
solid rockets jet flow impact load numerical analysis experimental measurement
分类号:
TJ760; V435
摘要:
针对固体火箭点火飞离发射装置过程中燃气射流对发射装置的冲击作用,该文采用计算流体力学和实验测量方法对燃气射流产生的冲击载荷进行研究。利用三维黏性湍流模型和动网格技术模拟了火箭飞离发射装置过程,计算获取了冲击过程流场形成的一般规律、迎气面上的压强分布和压强随时间的变化历程等。根据数值分析结果设计实验方案,通过实验测量得到测点的压强-时间关系。比较数值与实验结果发现,二者的压强峰值相近(误差约为18%),压强-时间变化历程一致,说明该文数值分析模型和方法可用于燃气射流冲击流场的模拟分析。
Abstract:
For the jet flow impacting on the launch device when solid rockets flying away from the launching device,the computational fluid mechanics and experimental measurement are used to simulate and measure the impact load of the jet flow.The 3-D viscous turbulent flow model and the dynamic grid technique are carried out to simulate the rocket launch process and the laws of flow field in the process of impact,the gas pressure distribution on the surface and the change courses of pressure-time are obtained.The experiment scheme is designed according to the results of numerical analysis,and the pressure-time relationship of measuring points is obtained by experimental measurement.The comparision of the numerical and experimental results shows that their errors of the peak pressure are about 18% and their pressure-time change courses are consistent.The numerical analysis method in this paper can be used in the simulation of the gas impact field of the solid rocket jet flow.

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备注/Memo

备注/Memo:
收稿日期:2014-08-10 修回日期:2015-01-13
基金项目:国家重大型号项目
作者简介:陈四春(1970-),男,研究员级高级工程师,主要研究方向:火箭武器系统总体技术,E-mail:csc06@163.com; 通讯作者:李军(1965-),男,教授,主要研究方向:兵器发射理论与技术,E-mail:lijunly@njust.edu.cn。
引文格式:陈四春,姜超,李军.固体火箭燃气射流冲击载荷的数值与实验研究[J].南京理工大学学报,2015,39(6):698-703.
投稿网址:http://zrxuebao.njust.edu.cn
DOI:10.14177/j.cnki.32-1397n.2015.39.06.011
更新日期/Last Update: 2015-12-31