光滑管道内 $ 2H_{2}-O_{2}-nAr $ 爆燃到爆轰转捩特性研究-学报杂志社

期刊信息

合肥工业大学（自然科学版），2025年6月，第48卷第6期：817-822

DOI: 10.3969/j.issn.1003-5060.2025.06.016

作者信息

吕兆文 $ ^{1} $，李权 $ ^{1,2,3} $，刘虎 $ ^{1} $，王昌建 $ ^{1,2,4} $，魏臻 $ ^{3,5} $

（1. 合肥工业大学土木与水利工程学院，安徽合肥 230009；2. 安徽省氢安全国际联合研究中心，安徽合肥 230009；3. 合肥工大高科信息科技股份有限公司，安徽合肥 230088；4. 安全关键工业测控技术教育部工程研究中心，安徽合肥 230601；5. 合肥工业大学计算机与信息学院，安徽合肥 230601）

摘要和关键词

摘要: 文章研究不同灵敏度的 $ 2H_{2}-O_{2}\sim nAr $ 火焰在光滑管道下游的爆轰起爆特性。使用平行放置于管道顶部的压电压力传感器记录爆炸压力，并基于此计算平均速度；同时采用烟迹示踪技术记录爆轰起爆过程的胞格演变规律。通过上述2种方法获得爆轰起爆距离，使爆轰的起爆能够可靠、准确地定位；并根据爆燃到爆轰转变过程的化学动力学与特性分析对Silvestrini公式和Saif公式进行修正，从而确定初始点火位置与爆轰起爆距离之间的经验相关性。

关键词: 氢能；爆燃转爆轰；胞格结构；临界条件；爆轰起爆距离

Authors

LYU Zhaowen $ ^{1} $, LI Quan $ ^{1,2,3} $, LIU Hu $ ^{1} $, WANG Changjian $ ^{1,2,4} $, WEI Zhen $ ^{3,5} $

(1. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China; 2. Anhui International Joint Research Center on Hydrogen Safety, Hefei 230009, China; 3. Hefei Gocom Information Technology Co., Ltd., Hefei 230088, China; 4. Engineering Research Center of Safety Critical Industrial Measurement and Control Technology of Ministry of Education, Hefei 230601, China; 5. School of Computer Science and Information Engineering, Hefei University of Technology, Hefei 230601, China)

Abstract and Keywords

Abstract: This paper reported the initiation characteristics of detonation of $ 2H_{2}-O_{2}-nAr $ flames with different sensitivities downstream of a smooth channel. Piezoelectric pressure sensors were flushed-mounted on the top wall of the channel to record pressure time histories, based on which combustion wave velocities were calculated. Soot foil technique was also used to record the evolution of the cellular pattern during the detonation initiation process. And the detonation initiation distance was obtained by these two methods, so that the initiation can be reliably and accurately located. In addition, the Silvestrini and Saif formulas were modified based on analyzing the chemical kinetics and characteristics of the deflagration-to-detonation transition (DDT) process. Thus, the empirical correlation between the initiation position and the detonation initiation distance can be defined.

Keywords: hydrogen; deflagration-to-detonation transition(DDT); cellular structure; critical condition; detonation initiation distance

基金信息

国家自然科学基金资助项目(12102117); 安徽省重点研究与开发计划资助项目(2022h11020013) 和合肥工业大学学术新人提升计划 B 资助项目(JZ2022HGTB0267)

合肥工业大学学报(自然科学版)

导航菜单

光滑管道内 $ 2H_{2}-O_{2}-nAr $ 爆燃到爆轰转捩特性研究