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Characteristics of gas explosion flow fields in complex pipelines
Alternative TitleCharacteristics of gas explosion flow fields in complex pipelines
Zhu Zhao1; Jia Zhenyuan1; Luo Haizhu2
2015
Source PublicationInternational Journal of Mining Science and Technology
ISSN2095-2686
Volume25Issue:1Pages:157-164
AbstractThe 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.
Other AbstractThe 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.
KeywordExplosion Numerical simulation Acceleration Reaction rate
Indexed ByCSCD
Language英语
CSCD IDCSCD:5402229
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156386
Collection中国科学院金属研究所
Affiliation1.大连理工大学
2.中国科学院金属研究所
Recommended Citation
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.
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