| 民居内燃气泄漏爆炸特性及其数值仿真研究进展* |
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| 引用本文： | 周楠,程桂敏,潘炎辉,李红宇,谢永迅,张金鹏.民居内燃气泄漏爆炸特性及其数值仿真研究进展*[J].中国安全生产科学技术,2023,19(2):159-166. |
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| 作者姓名： | 周楠 程桂敏 潘炎辉 李红宇 谢永迅 张金鹏 |
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| 作者单位： | (1.公安部物证鉴定中心，北京 100038；2.南京森林警察学院 刑事科学技术学院，江苏 南京 210023) |
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| 基金项目： | * 基金项目: 痕迹科学与技术公安部重点实验室开放项目(2020FMKFKT05) |
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| 摘 要： | 为研究民居内可燃气体爆炸规律及特点，预防燃气泄漏爆炸案/事件发生，提高案/事件现场勘验与侦破效率，综述受限空间内燃气爆炸的形成机理和传播特性、现场结构和障碍物对爆炸的影响规律以及爆炸后现场勘验和重建技术方法，阐述数值仿真技术在气体爆炸案件现场勘验和重建中发挥的作用。研究结果表明:民居内燃气爆炸现场特征明显异于传统爆炸类案件现场，尤其是炸点特征存在差异；数值仿真可有效揭示燃气泄漏爆炸的形成、传播和作用机理；目前，燃气爆炸实验研究方法和体系需进一步统一，以提高研究结论普适性。研究结果可为民居内燃气爆炸现场勘验和重建提供技术支持。
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| 关 键 词： | 气体爆炸 爆炸特性 受限空间 现场重建 数值仿真 |
Research progress on characteristics of gas leakage explosion in residential buildings and its numerical simulation |
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| ZHOU Nan,CHENG Guimin,PAN Yanhui,LI Hongyu,XIE Yongxun,ZHANG Jinpeng.Research progress on characteristics of gas leakage explosion in residential buildings and its numerical simulation[J].Journal of Safety Science and Technology,2023,19(2):159-166. |
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| Authors: | ZHOU Nan CHENG Guimin PAN Yanhui LI Hongyu XIE Yongxun ZHANG Jinpeng |
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| Affiliation: | (1.Institute of Forensic Science Ministry of Public Security of PRC,Beijing 100038,China;2.Department of Criminal Science and Technology,Nanjing Forest Police College,Nanjing Jiangsu 210023,China) |
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| Abstract: | In order to study the law and characteristics of combustible gas explosion in residential buildings,prevent the occurrence of such explosion cases/incidents and improve the efficiency of investigation and detection at the case site,the formation mechanism and propagation characteristics of combustible gas explosions in confined space,the influence law of on-site structures and obstacles,and the technical methods of on-site investigation and reconstruction were reviewed.The role of numerical simulation technology in on-site investigation and reconstruction of gas explosion cases was also expounded.The results showed that the characteristics of combustible gas explosion scene were obviously different from those of traditional explosion cases,especially the difference of blast point characteristics.Numerical simulation could effectively reveal the formation,propagation and action mechanism of gas leakage explosion.The methods and system of combustible gas explosion experimental research needed to be further unified to improve the universality of the conclusions.The research results can provide technical support for the investigation and reconstruction of the combustible gas explosion site. |
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| Keywords: | gas explosion explosive characteristic confined space on-site reconstruction numerical simulation |
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