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《Chemical Engineering of Oil & Gas》 2014-01
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Numerical simulation of urban buried gas pipeline leakage and diffusion

Cheng Mengmeng;Wu Ming;Zhao Ling;Liu Ke;Shao Dawei;Yang Mingyue;College of Petroleum Engineering,Liaoning Shihua University;Shenyang Institute of Special Equipment Inspection & Research;  
To study the diffusing of gas piercing leakage in urban buried gas pipeline,combining the finite volume method,CFD simulation models are established by Gambit 2.4at different leakage locations.The diffusion rule of gas in soil and air are simulated by Fluent 6.3under the three leakage conditions of the upper,lower and leeward side of the gas pipeline.The research result shows that the lower leakage in soil and air is the largest diffusion hazard area.If the valves at both ends of the pipeline are shut off,the gas diffusion hazard area will gradually get smaller.The studies can also provide the theoretical foundation for the personnel evacuation and security maintenance of pipelines in the scene of natural gas release.
【Fund】: 国家质检总局科研项目“质检公益性行业科研专项项目”(201010025)
【CateGory Index】: TE88
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