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Numerical Simulation and Engineering Application of Coalbed Water Injection

Author

Listed:
  • Yijie Shi
  • Pengfei Wang
  • Ronghua Liu
  • Xuanhao Tan
  • Wen Zhang

Abstract

Coalbed water injection is the most basic and effective dust-proof technology in the coal mining face. To understand the influence of coalbed water injection process parameters and coalbed characteristic parameters on coal wetting radius, this paper uses Fluent computational fluid dynamics software to systematically study the seepage process of coalbed water injection under different process parameters and coalbed characteristic parameters, calculation results of which are applied to engineering practice. The results show that the numerical simulation can help to predict the wetness range of coalbed water injection, and the results can provide guidance for the onsite design of coalbed water injection process parameters. The effect of dust reduction applied to onsite coalbed water injection is significant, with the average dust reduction rates during coal cutting and support moving being 67.85% and 46.07%, respectively, which effectively reduces the dust concentration on the working face and improves the working environment.

Suggested Citation

  • Yijie Shi & Pengfei Wang & Ronghua Liu & Xuanhao Tan & Wen Zhang, 2019. "Numerical Simulation and Engineering Application of Coalbed Water Injection," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-12, December.
    • Handle: RePEc:hin:jnlmpe:6309160
    DOI: 10.1155/2019/6309160
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