Numerical Simulation Study on Underwater Continuous Launch of the Multi-vehicles in Single Launching Tube

doi:10.3969/j.issn.1009-086x.2024.06.017

Abstract

Abstract:

In the process of underwater continuous vertical launch of the multi-vehicles in single launching tube， the gas overflowing between the built-in neighbouring launch tube interacts with the water to form a complex form of gas bubbles， and the expansion-contraction characteristics of the gas bubbles affect the flow field of the underwater continuous launching. In order to investigate the variation laws of the pressure field near outlet and its impact on the fluid load characteristics during the continuous launching process of the vehicle， numerical simulations are conducted using the VOF multiphase flow model and dynamic mesh technology controlled by user-defined functions， with a launching interval of 2 seconds for the continuous launching process of two vehicles. The simulated results show that when the first vehicle leaves the launch-tube， going through 1s time course， the pulsation of the launch outlet pressure field is significantly weakened， and after the secondary vehicle leaves the cylinder， the launcher flow field shows an obvious asymmetric distribution； The outlet bubble formed when the first vehicle leaving the launcher，which creates an air curtain environment on the subsequent vehicle launch channel， it reduces the axial load F_x of the secondary vehicle and also reduces the load of the adjacent equipment of the barrel mouth， but the asymmetric development of the outlet bubble leads to violent oscillations in the deflection force and deflection moment of the voyage， which will affect the initial trajectory of the vehicle. The research results may provide reference in the field of demonstration of underwater common frame launch scheme for engineering application.

Key words: underwater continuous launch, gas bubble, pressure field near outlet, load characteristics, gas screen load reduction, numerical simulation

摘要：

一筒多航行体水下连续垂直发射过程中，内置发射邻筒之间溢出的燃气与水交互形成复杂形态燃气泡，而燃气泡的膨胀-收缩特性会对水下连续发射流场产生影响。为了研究航行体连续发射过程中筒口压力场及其对弹体流体载荷特性影响变化规律，利用VOF多相流模型和用户自定义函数控制的动网格技术，取发射间隔为2 s，两发航行体连续发射过程进行数值模拟。仿真结果表明，首发航行体离筒后，经历1 s时间历程，筒口压力场的脉动明显减弱，次发航行体离筒后，筒口流场呈现明显的非对称分布；首发航行体离筒形成的筒口气泡为后续航行体发射通道上创造气幕环境，使得次发航行体轴向载荷Fx减小，以及对筒口的相邻设备亦起到了降载效果，但筒口气泡的不对称发展导致了航行受到的偏转力与偏转力矩出现剧烈震荡，从而将影响航行体初始弹道。该研究结果可以为一筒多航行体水下发射方案论证提供参考。

关键词: 水下连续发射, 燃气泡, 筒口压力场, 载荷特性, 气幕降载, 数值仿真

CLC Number:

Xizhao DU, Xiaochuan QIAN, Zeping CHEN, Kaiyu DU, Yao SHI, Xiaobin QI. Numerical Simulation Study on Underwater Continuous Launch of the Multi-vehicles in Single Launching Tube[J]. Modern Defense Technology, 2024, 52(6): 129-138.

杜喜昭, 钱小川, 陈泽平, 杜凯育, 施瑶, 祁晓斌. 一筒多航行体水下连续发射数值仿真研究[J]. 现代防御技术, 2024, 52(6): 129-138.

Figures/Tables 14

Fig. 1 Layout diagram of the model

Fig. 2 Computational domain

Fig. 3 Grid divison

Table 1 The setting of launch parameters

流场参数	数值
气体常数R/（J·（kg·K）^-1）	329
燃气比热比k	1.3
平均分子量M	26
出筒时刻筒内压力p/MPa	0.90
出筒时刻筒内温度T/K	600
出筒速度v/（m·s^-1）	30
发射水深h/m	50
发射时间间隔Δt/s	2

Table 2 Working condition table

编号	网格类型	网格数量
Grid 1	稀疏网格	160
Grid 2	标准网格	240
Grid 3	加密网格	320

Fig. 4 Impact of the number of grids

Fig. 5 Influence of calculation step size

Fig. 6 Morphological evolution of bubbles at tube outlet

Fig. 7 Load of launch outlet vs. time

Fig. 8 Load of missile vs. time

Fig. 9 Coordinate system definition diagram

Fig. 10 Load of cover vs. time

Fig. 11 Layout of monitor position

Fig. 12 Variation law of measuring point pressure vs.time

References 22

1	倪火才. 潜载导弹水下发射技术的发展趋势分析［J］. 舰载武器， 2001（1）： 8-16.
	NI Huocai. Development Trend Analysis of Submarine Launched Missile［J］. Shipborne Weapons， 2001（1）： 8-16.
2	WEILAND C J， VLACHOS P P， YAGLA J J. Concept Analysis and Laboratory Observations on a Water Piercing Missile Launcher［J］. Ocean Engineering， 2010， 37（11/12）： 959-965.
3	郑宏建. 舰载导弹发射装置发展趋势——通用化垂直发射装置［J］. 飞航导弹， 2003（4）： 24-27.
	ZHENG Hongjian. Development Trend of Shipborne Missile Launch Devices-Universal Vertical Launch Devices［J］. Aerodynamic Missile Journal， 2003（4）： 24-27.
4	郑宏建，于丽颖. 舰载导弹系统共架发射特点分析［J］. 飞航导弹， 2004（7）： 32-34， 41.
	ZHENG Hongjian， YU Liying. Analysis of Sharing-Launch Characteristics of Shipborne Missile System［J］. Aerodynamic Missile Journal， 2004（7）： 32-34， 41.
5	王春健，邓基忠，吴刚，等. 潜射导弹共架发射技术研究［J］. 飞航导弹， 2011（3）： 50-53.
	WANG Chunjian， DENG Jizhong， WU Gang， et al. Research on Common Frame Launch Technology of Submarine Launched Missile［J］. Aerodynamic Missile Journal， 2011（3）： 50-53.
6	张义忠，倪火才. 潜载导弹水下共架垂直发射方案探讨［J］.舰船科学技术， 2005， 27（5）： 55-60.
	ZHANG Yizhong， NI Huocai. The Concept of Submarine Launched Missile's Common Frame， Modular and Vertical Launcher［J］. Ship Science and Technology， 2005， 27（5）： 55-60.
7	赵志敏，吴训涛，覃东升. 水下垂直发射筒口压力波动特性分析［J］. 兵器装备工程学报， 2017， 38（10）： 5-8.
	ZHAO Zhimin， WU Xuntao， QIN Dongsheng. Analysis on the Characteristics of Pressure Wave Near Tube for Underwater Vertical Launch［J］. Journal of Ordnance Equipment Engineering， 2017， 38（10）： 5-8.
8	王亚东，袁绪龙，覃东升. 导弹水下发射筒口气泡特性研究［J］. 兵工学报， 2011， 32（8）： 991-995.
	WANG Yadong， YUAN Xulong， QIN Dongsheng. Research on the Outlet Cavity Features During the Launch of Submarine Launched Missile［J］. Acta Armamentarii， 2011， 32（8）： 991-995.
9	朱珠，卢丙举. 潜空导弹垂直发射出筒横向载荷特性［J］. 应用力学学报， 2018， 35（3）： 452-457.
	ZHU Zhu， LU Bingju. Lateral Load Characteristics of Vertical Launching Submarine-to-Air Missile［J］. Chinese Journal of Applied Mechanics， 2018， 35（3）： 452-457.
10	祁晓斌，王瑞，袁绪龙，等. 水下垂直发射燃气后效对筒盖系统的影响研究［J］. 兵工学报， 2017， 38（11）： 2184-2189.
	QI Xiaobin， WANG Rui， YUAN Xulong， et al. Research on the Gas Aftereffect and Its Influence on Launch Tube Cover During Underwater Vertical Launching［J］. Acta Armamentarii， 2017， 38（11）： 2184-2189.
11	傅德彬，于殿君，张志勇. 潜射导弹离筒后海水倒灌效应数值分析［J］. 固体火箭技术， 2012， 35（2）： 157-160.
	FU Debin， YU Dianjun， ZHANG Zhiyong. Numerical Simulation on Hydrodynamic Impact Effect After Submarine Launched Missile Leaves the Launcher［J］. Journal of Solid Rocket Technology， 2012， 35（2）： 157-160.
12	施红辉，周东辉，孙亚亚，等. 水下连发射弹的超空泡流动特性研究［J］. 兵工学报， 2018， 39（11）： 2228-2235.
	SHI Honghui， ZHOU Donghui， SUN Yaya， et al. Research on the Characteristics of Supercavitating Flows Caused by Underwater Continuously Fired Projectiles［J］. Acta Armamentarii， 2018， 39（11）： 2228-2235.
13	张亚静，黄修长，董彦鹏，等. 瞬态发射载荷作用下含缓冲装置水下发射系统动力学建模与分析［J］. 噪声与振动控制， 2018， 38（5）： 7-11， 20.
	SUN Yajing， HUANG Xiuchang， DONG Yanpeng， et al. Dynamic Modeling and Analysis of Underwater Launch Systems with Buffer Devices under Transient Loads［J］. Noise and Vibration Control， 2018， 38（5）： 7-11， 20.
14	赵一帆. 潜射航行体共架垂直发射流体动力特性研究［D］. 哈尔滨：哈尔滨工业大学， 2014.
	ZHAO Yifan. The Research on Hydrodynamic Characteristics of Sharing Launched Submaring-Launched Vehicle［D］. Harbin： Harbin Institute of Technology， 2014.
15	赵通. 发射筒布局及横流对水下航行体共架发射影响的研究［D］. 哈尔滨：哈尔滨工业大学， 2015.
	ZHAO Tong. Numerical Simulation Research on the Sharing Submaring-Launched Vehicle Influenced by Different Launching Space and Crossflow［D］. Harbin： Harbin Institute of Technology， 2015.
16	李强. 水下航行体连续垂直发射出筒过程多相流动特性研究［D］. 哈尔滨：哈尔滨工业大学， 2018.
	LI Qiang. Research on Multiphase Flow Characteristics of Continuous Vertical Launch of Underwater Vehicles［D］. Harbin： Harbin Institute of Technology， 2018.
17	高山，施瑶，潘光，等. 水下发射航行体尾涡不稳定性分析［J］. 力学学报， 2022， 54（9）： 2435-2445.
	GAO Shan， SHI Yao， PAN Guang， et al. Study on the Wake Vortex Instability of the Projectile Launched Underwater［J］. Chinese Journal of Theoretical and Applied Mechanics， 2022， 54（9）： 2435-2445.
18	魏英杰，武雨嫣，王聪，等. 水下航行体齐射出筒“水锤”特性分析［J］. 宇航总体技术， 2020， 4（5）： 22-32.
	WEI Yingjie， WU Yuyan， WANG Cong， et al. Characteristic Analysis of "Water Hammer" Volleying of Underwater Launched Sailing Body［J］. Astronautical Systems Engineering Technology， 2020， 4（5）： 22-32.
19	杨珺凡，傅德彬，毕凤阳，等. 水下弹射筒口气泡及载荷特性数值研究［J］. 固体火箭技术， 2021， 44（3）： 414-419.
	YANG Junfan， FU Debin， BI Fengyang， et al. Numerical Study on Characteristics of Outlet Gas Bubble and Load of Underwater Ejection Launch［J］. Journal of Solid Rocket Technology， 2021， 44（3）： 414-419.
20	王佳雯，祁晓斌，王瑞，等. 环境压强连续变化作用下水下燃气射流数值仿真［J］. 水下无人系统学报， 2022， 30（4）： 500-506.
	WANG Jiawen， QI Xiaobin， WANG Rui， et al. Numerical Simulation of Underwater Gas Jet Fields with the Continuous Change of Ambient Pressure［J］. Journal of Unmanned Undersea Systems， 2022， 30（4）： 500-506.
21	王诚，叶取源，何友声. 导弹水下发射燃气泡计算［J］. 应用力学学报， 1997， 14（3）： 1-7.
	WANG Cheng， YE Quyuan， HE Yousheng. Calculation of an Exhausted Gas Cavity Behind an Under Water Launched Missile［J］. Chinese Journal of Applied Mechanics， 1997， 14（3）： 1-7.
22	张宇文，袁绪龙，邓飞. 超空泡航行体流体动力学［M］. 北京：国防工业出版社， 2014.
	ZHANG Yuwen， YUAN Xulong， DENG Fei. Fluid Dynamics of Supercavitating Underwater Vehicles［M］. Beijing： National Defense Industry Press， 2014.

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