Numerical Simulation of Gas Leakage and Diffusion Based on FLUENT

Lin Zhi Fu; Yu Feng Li; Gang Li

doi:10.4028/www.scientific.net/AMR.726-731.888

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Numerical Simulation of Gas Leakage and Diffusion...

Numerical Simulation of Gas Leakage and Diffusion Based on FLUENT

Abstract:

A two-dimensional unsteady flow model was established by Realizable k-ε turbulence model and SIMPLE algorithm, which was applied to conduct numerical simulation of sudden leakage and diffusion of coal gas in the plant area. Then, time-dependent distribution laws of coal gas under different influencing factors were analyzed. The results showed that as the leaking mouth diameter, internal pressure and wind speed increase, the concentration was roughly the same near the mouth; coal gas that was 3m away from the mouth diffuses more quickly and the area covered within explosion limit of coal gas expanded to some extent. For different gas medium, converter gas spread more widely than coke oven gas. The former accumulated on the ground, the latter accumulated above the ground.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

888-891

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.888

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Online since:

August 2013

Authors:

Lin Zhi Fu, Yu Feng Li, Gang Li

Keywords:

Diffusion, Fluent, Leakage, Numerical Simulation

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