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In order to study the mechanism of the Vacuum Cavity explosion venting technology in the gas pipe, An L type simulation model referred to the experimental pipe is established in this paper, in which the Vacuum Cavity explosion venting is simulated by means of Fluent software. The change law of the pressure field, temperature field and velocity vector is obtained in the numerical simulation. After the data analysis, the conclusion is that, the propagation of the shock wave in the pipe accords with the fluid water-hammer phenomenon. The gas components which enter into the Cavity impact and neutralize each other before they vanish eventually and suspend the reaction chain of the combustion. The broken timing of weak panel of the cavity and the change of Cavity volume are the important factors that affect the Vacuum Cavity explosion venting

Study on the Numerical Simulation of the Vacuum Cavity Explosion Venting