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《Explosive Materials》 2008-05
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Numerical Investigation on Blast Shock Wave Propagation in the Complex Tunnel

Mu Chaomin①,Ren Huiqi②,Li Yongchi①,Xin Kai②①Department of Modern Mechanics,University of Science and Technology of China(Anhui Hefei,230026)② Luoyang Institute of Hydraulic Engineering and Technology(He'nan Luoyang,471023)  
Numerical simulations were carried out study the mechanism of blast shock wave generation and propagation in complex tunnel.Euler equations were solved by the NND scheme in order to capture the blast shock wave propagation and reflection in the tunnel.Two dimension numerical codes were made by using the JWL equation of state for product.Numerical results were in good agreement with experiments.It is shown that the magnitude of blast shock wave can decrease 55% by using covered way,and the magnitude can decrease 75% by using covered way in combination with diffusion chamber.
【CateGory Index】: O382
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