Effect of obstacles behind the pre-detonator tube on the re-initiation of diffracted detonation wave

被引：5

作者：

Shi, Xingyu ^{[1
]}

Pan, Jianfeng ^{[1
]}

Li, Jianxing ^{[1
]}

Jiang, Chao ^{[1
]}

Zhu, Yuejin ^{[1
]}

Quaye, Evans K. ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Hydrogen; Obstacles; OpenFOAM; Diffracted detonation; Re-initiation; BLOCKAGE RATIO; NUMERICAL-SIMULATION; FLAME ACCELERATION; HYDROGEN-OXYGEN; ARC OBSTACLES; TRANSMISSION; PROPAGATION; TRANSITION; MECHANISM; REFLECTION;

D O I：

10.1016/j.ijhydene.2022.11.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The re-initiation of diffracted detonation wave is simulated by the DCRFoam. The detona-tion waves propagated from the pre-detonator tube to the main chamber are formed by 2H2- O2-7Ar. Due to the sudden expansion of cross-section, the detonation wave will be atten-uated by the rarefaction effect, resulting in detonation failure. Introducing obstacles behind the pre-detonator is an effective method to realize the diffracted detonation re-initiation. This study aims to optimize the detonation transmission by considering the height (h) of obstacles and the distance (w) between obstacles and the exit of the pre-detonator. Results show that, when 15.31311w2-1342.52507w+29435.201370.00239w2+0.38038w+10.95694 (10 mm < h < 30 mm, 10 mm < w < 50 mm), the diffracted detonation wave can realize re -initiation. When w is constant, the formation distance of stable detonation first decreases and then increases with the increase of h. The same law of w can be found when h is unchanged.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：4860 / 4874

页数：15

共 26 条

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[26] Detonation re-initiation in a concentric tube arrangement for C2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_2$$\end{document}H2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_2$$\end{document}/O2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_2$$\end{document}/Ar mixtures
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