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Soviet Mining

, Volume 21, Issue 1, pp 92–97 | Cite as

Modeling aerodynamic and diffusion processes in planar, room-shaped working

  • G. V. Kalabin
  • A. A. Baklanov
Mine Aerodynamics
  • 14 Downloads

Conclusions

  1. 1.

    A numerical model was constructed for the aerodynamics of planar chambers and diffusion of impurities in the chamber atmosphere in a two-dimensional arrangement.

     
  2. 2.

    A method is proposed for determining the coefficients of turbulent diffusion in planar chambers, based on parallel physical and mathematical modeling.

     
  3. 3.

    Upon increasing the degree of horizontal flow constraint and the length of the chamber, a variation is observed in the ventilation pattern in planar chambers: from a recirculation pattern to direct flow-recirculation and direct flow. Reducing the velocity at the inlet to the chamber leads to a more rapid growth in eddy currents in the corners of the chamber.

     
  4. 4.

    With a direct-flow pattern of ventilation, a smooth reduction is observed in concentration at the outlet over time. With a recirculation pattern, additional maxima in concentration are observed, caused by the diffusion and transfer of impurities by eddy currents. Under conditions of direct-flow-recirculation ventilation, secondary maxima are very weakly expressed.

     

Keywords

Turbulent Diffusion Impurity Transfer Chamber Atmosphere Recirculation Pattern Planar Chamber 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature Cited

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    K. Yu. Laigna, Mathematical Modeling of Diffusion Processes in the Ventilation of Drift-Room-Shaped Workings [in Russian], Tallin (1979).Google Scholar
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    A. E. Aloyan, D. L. Iordanov, and V. V. Penenko, “Numerical model of impurity transfer in the boundary layer of the atmosphere,” Meteorol. Gidrolog., No. 8 (1981).Google Scholar
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Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • G. V. Kalabin
  • A. A. Baklanov

There are no affiliations available

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