Scaling law of deep-sea trinitrotoluene (TNT) explosion

doi:10.1007/s10409-023-23280-x

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Scaling law of deep-sea trinitrotoluene (TNT) explosion
	Yue, Junzheng 2; Wu, Xianqian 2; Huang, Chenguang 1
刊名	ACTA MECHANICA SINICA
	2024-04-01
卷号	40 期号:4 页码:10
关键词	Deep-sea explosion Peak overpressure Positive overpressure pulse Numerical simulation Scaling law
ISSN号	0567-7718
DOI	10.1007/s10409-023-23280-x
通讯作者	Wu, Xianqian(wuxianqian@imech.ac.cn)
英文摘要	Understanding the dynamic characteristics of deep-sea explosions is essential to improve the survivability and combat capability of deep-sea equipment. In this paper, by considering the practical underwater conditions, we investigated the mechanical effects of the deep-sea 1-kg-trinitrotoluene (TNT) explosion with charge depths ranging from 1 to 10 km through numerical simulation and dimensional analysis. The shock wave overpressure, the positive overpressure pulse, the bubble pulse, and the energy distribution for various depth explosions were analyzed systematically. The simulation results showed that the charge depth was negligible for the peak overpressure of the shock wave. However, the positive overpressure pulse, the shock wave energy, the maximum bubble radius, the bubble energy, and the bubble period decrease significantly with increasing the charge depth. Then, the dimensional analysis for deep-sea TNT explosion was performed to reveal the key dimensionless parameters, from which the scaling laws of the shock wave overpressure and the overpressure pulse were obtained. By fitting the simulation results, the dimensionless equations were proposed, providing an effective method for predicting the peak overpressure and the positive overpressure pulse of shock wave for underwater TNT explosion over a wide range of water depths.
资助项目	National Natural Science Foundation of China[12002349] ; National Natural Science Foundation of China[12272391] ; National Natural Science Foundation of China[12232020] ; Opening project of State Key Laboratory of Explosion Science and Technology[KFJJ23-22M]
WOS关键词	UNDERWATER EXPLOSION ; DYNAMIC-RESPONSE ; BUBBLE ; PRESSURE ; PLATES
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:001113709600001
资助机构	National Natural Science Foundation of China ; Opening project of State Key Laboratory of Explosion Science and Technology
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93587]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Wu, Xianqian
作者单位	1.Chinese Acad Sci, Inst Phys Sci, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yue, Junzheng,Wu, Xianqian,Huang, Chenguang. Scaling law of deep-sea trinitrotoluene (TNT) explosion[J]. ACTA MECHANICA SINICA,2024,40(4):10.
APA	Yue, Junzheng,Wu, Xianqian,&Huang, Chenguang.(2024).Scaling law of deep-sea trinitrotoluene (TNT) explosion.ACTA MECHANICA SINICA,40(4),10.
MLA	Yue, Junzheng,et al."Scaling law of deep-sea trinitrotoluene (TNT) explosion".ACTA MECHANICA SINICA 40.4(2024):10.