Characteristics of gas explosion flow fields in complex pipelines

IMR OpenIR

	Characteristics of gas explosion flow fields in complex pipelines
其他题名	Characteristics of gas explosion flow fields in complex pipelines
	Zhu Zhao 1; Jia Zhenyuan 1; Luo Haizhu 2
	2015
发表期刊	International Journal of Mining Science and Technology
ISSN	2095-2686
卷号	25 期号:1 页码:157-164
摘要	The explosion flow field in five straight pipes with different diameters and one bending pipe selected from a domestic coal mine are studied by the method of numerical simulation. And the results show that, both in the straight and bending pipes, the pressure wave and velocity wave are accelerated by the rising of reaction rate. As the explosion progressed, with the temperature reaching approximately 3000 K, only one pressure wave and one reaction rate wave were observed, while several velocity waves were found. The larger diameter presented the highest relative pressure as well as the largest velocity increase and subsequent decrease inside the tube. The bent pipes caused both turbulence and kinetic energy to increase, resulting in the acceleration of the reaction rate. The burning time was 7.4% shorter than the burning time observed for the straight pipe. Based on these results, designing one explosion resistance device, and in the practical engineering applications, it was to be proved to meet the security requirements fully.
其他摘要	The explosion flow field in five straight pipes with different diameters and one bending pipe selected from a domestic coal mine are studied by the method of numerical simulation. And the results show that, both in the straight and bending pipes, the pressure wave and velocity wave are accelerated by the rising of reaction rate. As the explosion progressed, with the temperature reaching approximately 3000 K, only one pressure wave and one reaction rate wave were observed, while several velocity waves were found. The larger diameter presented the highest relative pressure as well as the largest velocity increase and subsequent decrease inside the tube. The bent pipes caused both turbulence and kinetic energy to increase, resulting in the acceleration of the reaction rate. The burning time was 7.4% shorter than the burning time observed for the straight pipe. Based on these results, designing one explosion resistance device, and in the practical engineering applications, it was to be proved to meet the security requirements fully.
关键词	Explosion Numerical simulation Acceleration Reaction rate
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:5402229
引用统计	被引频次：6[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/156386
专题	中国科学院金属研究所
作者单位	1.大连理工大学 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Zhu Zhao,Jia Zhenyuan,Luo Haizhu. Characteristics of gas explosion flow fields in complex pipelines[J]. International Journal of Mining Science and Technology,2015,25(1):157-164.
APA	Zhu Zhao,Jia Zhenyuan,&Luo Haizhu.(2015).Characteristics of gas explosion flow fields in complex pipelines.International Journal of Mining Science and Technology,25(1),157-164.
MLA	Zhu Zhao,et al."Characteristics of gas explosion flow fields in complex pipelines".International Journal of Mining Science and Technology 25.1(2015):157-164.