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《Journal of University of Science and Technology Beijing》 2006-10
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Dynamic mathematical model and numerical analysis of gas explosion in excavation roadway

QU Zhiming 1) ,ZHOU Xinquan 2) ,ZHANG Yikai 3) ,XU Jingde 4) 1) Civil Engineering School,Hebei University of Engineering,Handan 056038,China2) Resources and Safety Engineering School,China University of Mining and Technology,Beijing 100083,China3) Economy and Management School,Hebei University of Engineering,Handan 056038,China4) Safety Training Department,North China Institute of Science and Technology,Beijing 101601,China  
A 3-D dynamic mathematical model of gas explosion flow field was built based on explosion mechanics,explosion dynamic mechanics and thermodynamics. The way of boundary conditions defining was studied by experiment and theory analysis,and the total variation diminishing (TVD) was used to numerically solve the mathematical model. Numerical simulation results show that barricade excitation will be formed in combustion and other areas while the pressure is increased to detonation,and the fields of pressure and velocity around the barricade is greatly changed in the whole area of explosion.
【Fund】: 国家重点基础研究发展计划(973)资助项目(No.2005CB221506)
【CateGory Index】: TD712.71
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