Aiming at the unstable movement of air flow in the working face and goaf,COMSOL Multiphysics multi physics field coupling simulation software and relevant principles of gas transport are used to simulate and analyze the transport and concentration changes of air and gas in the working face and goaf.The results show that as the inlet wind speed increases,the air content in the goaf increases;The longer the ventilation time,the higher the air content in the goaf;Natural ventilation is difficult to solve the accumulation of gas in the upper corner.The simulation results can effectively guide gas drainage in mines and provide theoretical basis for the prevention of fire and explosion accidents.
关键词
回采工作面/COMSOL/Multiphysic/流动场耦合
Key words
mining working face/COMSOL Multiphysic/flow field coupling
维普
万方数据