Characterization of a large caliber explosively driven shock tube.

IF 1.3 4区 工程技术 Q3 INSTRUMENTS & INSTRUMENTATION
Yunfei Mu, Jun Zhang, Mao Yang, Hanjun Huang, Yongjian Mao, Haiying Huang, Xing Zheng
{"title":"Characterization of a large caliber explosively driven shock tube.","authors":"Yunfei Mu, Jun Zhang, Mao Yang, Hanjun Huang, Yongjian Mao, Haiying Huang, Xing Zheng","doi":"10.1063/5.0213918","DOIUrl":null,"url":null,"abstract":"<p><p>Research on evaluating weapon systems, building structures, and personnel protection has attracted considerable attention due to the high incidence of blast accidents. The explosively driven shock tube is an affordable and replicable method for investigating high pressure blast waves and extreme shock environments. A newly constructed large caliber explosively driven shock tube with an inner diameter of 2.5 m and a length of 18 m has been documented and characterized in this paper. It is capable of providing a peak pressure of at least 5.49 MPa in the test section with 160 kg of TNT charges. The tube can produce an overpressure that is significantly higher than conventional shock tubes, which expands the capability to simulate a high overpressure blast load. A two-dimensional axisymmetric simulation model has been developed, validated, and calibrated for the characterization of the flow field inside the shock tube. The influence of the charge mass on the overpressure, arrival time, and positive impulse was discussed, and the planarity of the shock wave was also quantitatively characterized. To aid in designing further shock experiments and applications, a physics-based prediction model was developed using the dimensional analysis.</p>","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"95 11","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Review of Scientific Instruments","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1063/5.0213918","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0

Abstract

Research on evaluating weapon systems, building structures, and personnel protection has attracted considerable attention due to the high incidence of blast accidents. The explosively driven shock tube is an affordable and replicable method for investigating high pressure blast waves and extreme shock environments. A newly constructed large caliber explosively driven shock tube with an inner diameter of 2.5 m and a length of 18 m has been documented and characterized in this paper. It is capable of providing a peak pressure of at least 5.49 MPa in the test section with 160 kg of TNT charges. The tube can produce an overpressure that is significantly higher than conventional shock tubes, which expands the capability to simulate a high overpressure blast load. A two-dimensional axisymmetric simulation model has been developed, validated, and calibrated for the characterization of the flow field inside the shock tube. The influence of the charge mass on the overpressure, arrival time, and positive impulse was discussed, and the planarity of the shock wave was also quantitatively characterized. To aid in designing further shock experiments and applications, a physics-based prediction model was developed using the dimensional analysis.

大口径爆炸驱动冲击管的特性。
由于爆炸事故频发,有关武器系统、建筑结构和人员保护的评估研究引起了人们的极大关注。爆炸驱动冲击管是研究高压冲击波和极端冲击环境的一种经济实惠且可复制的方法。本文记录并描述了一个新建造的大口径爆炸驱动冲击管,其内径为 2.5 米,长度为 18 米。它能够在装有 160 千克 TNT 炸药的试验段中提供至少 5.49 兆帕的峰值压力。该管产生的超压明显高于传统冲击管,从而扩大了模拟高超压爆炸载荷的能力。已开发、验证和校准了一个二维轴对称模拟模型,用于描述冲击管内流场的特征。讨论了装药质量对超压、到达时间和正冲力的影响,并对冲击波的平面性进行了定量分析。为了帮助设计进一步的冲击实验和应用,利用尺寸分析建立了一个基于物理的预测模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Review of Scientific Instruments
Review of Scientific Instruments 工程技术-物理:应用
CiteScore
3.00
自引率
12.50%
发文量
758
审稿时长
2.6 months
期刊介绍: Review of Scientific Instruments, is committed to the publication of advances in scientific instruments, apparatuses, and techniques. RSI seeks to meet the needs of engineers and scientists in physics, chemistry, and the life sciences.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信