Numerical Simulation for Perforation-Caused Leakage Diffusion of Buried Gas Pipeline

Jing Cui; Si Yue Ma; Yu Peng Liang; Yong Hui Guo; Xue Bin Zhao; Li Xue Shi

doi:10.4028/www.scientific.net/AMM.509.135

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 509Numerical Simulation for Perforation-Caused...

Numerical Simulation for Perforation-Caused Leakage Diffusion of Buried Gas Pipeline

Abstract:

This paper focuses on the perforation-caused leakage diffusion of the underground gas pipeline. Common situations, such as normal leakage model, perforation leakage model and pipe model, are analyzed by theoretical method, and so does the leakage model of natural gas in atmosphere, such as Gauss model. Subsequently, the actual perforation leakage diffusion problem is simplified into an ideal model based on the characteristics of buried gas pipeline. CFD software FLUENT is adopted to perform a transient simulation of this problem, by which the changing trend of the diffusion concentration and velocity of methane with time is obtained and the influence from perforation diameter is further investigated. The results obtained in this paper provide some scientific basis to the safety management and accident rapid rescue of underground gas pipeline.

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Periodical:

Applied Mechanics and Materials (Volume 509)

Pages:

135-140

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.509.135

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Online since:

February 2014

Authors:

Jing Cui*, Si Yue Ma, Yu Peng Liang, Yong Hui Guo, Xue Bin Zhao, Li Xue Shi

Keywords:

Diffusion Concentration, Fluent Software, Numerical Simulation, Perforation-Caused Leakage, Underground Gas Pipeline

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* - Corresponding Author

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