Computational Fluid Dynamics and its Application in Gas Control of Goaf

Abstract:

In recent years, study on the regularity of gas moving has been emphasized due to the more seriously problem of mine gas which caused by the ever increasing of mining depth and rate in the coal. As the important source for the workplace gas, the goaf gas always causes a exceeding of the safety limit at the upper corner, it not only influences the sustainability, stability and security of the mines, but also serves as the primary cause of the accidents. In order to discuss the migration and distributed rule of the goaf gas, this article based on computational fluid dynamics, in accordance with the seepage theory and on the premise of analysised the fluid state of goaf gas, the distribution rule of goaf gas moving has been studied by establishing a mathematical model of gas seepage and distribution in the goaf area with a given boundary condition. The research has provided theoretical basis for the analysis of gas density at the upper corner of the mines, demonstrating its theoretical and practical significance in preventing gas overrun and safeguarding safety in coal mining.

• Periodical: Applied Mechanics and Materials (Volumes 52-54)
• Pages: 1274-1278
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.52-54.1274
• Online since: March 2011
• Authors: Xue Kang, Chang Hua Chen, Ren Chong Teng, Jian Ye Su
• Keywords: Computational Fluid Dynamics (CFD), Gas, GOAF

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