Queensland's institutional digital repository (The University of Queensland) · 2008 · 48 citations · 6 references
EngineeringComputational EngineeringMining EngineeringComputational Fluid DynamicsUnderground MiningVentilationUnderground Space VentilationVentilation Control DevicesVentilation DesignVentilation ModelingVentilation SafetyVentilation SimulationMine Airflow ModellingMine Airflow SimulationMine Ventilation ControlMine Ventilation DesignNumerical Flow SimulationUnderground Airflow SimulationUnderground Mine VentilationVentilation System Modeling
Computational Fluid Dynamics has become a common tool in mining to model airflow, and brattice sails—cost‑effective, temporary or permanent devices—are used to direct air into crosscut regions, but their design and installation must maintain adequate fresh air supply while minimizing impact on the ventilation system. This study uses CFD to simulate airflow in underground crosscut regions and determine the optimal brattice curtain size for effective contaminant removal. A two‑dimensional CFD model was employed to examine how varying brattice length affects fluid flow behavior within the crosscut. The results provide guidance for ventilation designers to meet safety requirements by optimizing brattice curtain dimensions for efficient contaminant removal.
In recent years, Computational Fluid Dynamics, CFD, has been commonly utilized in the mining industry to model the fluid flow behavior in underground mine workings. This paper uses CFD modeling to simulate the airflow behavior in underground crosscut regions, where brattice sails are used to direct the airflow into these regions. Brattice sails are cost effective ventilation control devices for temporary or permanent use in underground mining. They can be used to deflect air into the unventilated areas such as crosscut regions. Their design and installation is a fundamental issue for maintaining a sufficient supply of fresh air and achieving effective air circulation and contaminant removal. At the same time, they should have little impact on the mine ventilation system. This paper presents the results of a two-dimensional CFD model, which examines the effects of brattice length on fluid flow behavior in the crosscut regions. The results of this study will assist in understanding the ventilation air behavior and in determining the optimum size of brattice curtain (sails), which provide a highly effective contaminant removal from the unventilated mine areas. This, in turn, helps the mine ventilation designers to meet the mine safety requirements.
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New approaches to mine-face ventilation
A. M. Wala, Jamey Jacob, James H. Brown et al. · Mining Engineering · 2003 · 34 citations
Engineering, Architectural Engineering, Mining Engineering +14