Numerical analysis of the diffusion effects of combustible gas leak on the leak location
| Autor: | Jian Liu, Guansan Tian, Zuotang Wang, Desheng Li, Xingquan Li |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
021110 strategic
defence & security studies Leak Piping Buoyancy Explosive material Turbulence 0211 other engineering and technologies 02 engineering and technology General Medicine Mechanics 010501 environmental sciences engineering.material 01 natural sciences Wind speed engineering Environmental science Diffusion (business) 0105 earth and related environmental sciences Leakage (electronics) |
| Zdroj: | Procedia Engineering. 205:3678-3685 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2017.10.247 |
| Popis: | In this paper, using the Reynolds averaged Navier-Stokes equation and the turbulence modelling with the correction of buoyancy effects, we get the diffusion characteristics of different positions after the leakage and analyze the results under the influence of wind speed and the component transport model, which base on numerical calculation of flammable gas’s leakage and diffusion at different positions indoor. The results show that different hazardous areas are formed after the gas leaked out and diffused at different locations. The higher position indoor, the smaller explosive areas are formed without wind influence outside when leaking hole and exit are in opposite side; meanwhile the closer the leakage hole located in exit downwind side, the higher wind speed and the faster the gas diffused, the less hazardous area are formed. This paper plays an important role in interior design of gas piping systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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