Numerical Simulation Buried Natural Gas Pipeline Leakage Based on FLUENT
In order to study the influencing factors of leakage diffusion of buried natural gas pipeline,a three-dimensional model of buried natural gas pipeline is established,and FLUENT software is used to simulate and study the influences of different pipeline inlet pressures,leakage hole sizes,leakage hole locations and other parameters on the amount of natural gas leakage and diffusion range.The simulation results show that the temperature contour around the leakage hole is spherical,and the leaked natural gas spreads spherically;with the increase of the pipeline inlet pressure and the size of the leakage hole,the larger the amount of natural gas leakage,and the larger the natural gas spreading range.When the buried natural gas pipeline is leaking downward,the spreading range is smaller than that of the upward leakage and the lateral leakage.
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