To enhance the working environment in the air-supported membrane structure of coal yard,com-putational fluid dynamics was used to investigate the influence of inlet airflow velocity,number of exhaust vents,and dimensions of exhaust vents on the mass fractions of CO and CH4 in the large-scale air-supported membrane coal shed.The results indicated that increasing the number or size of exhaust vents only marginally affected the average flow velocity of the internal air.However,augmenting the inlet wind speed significantly enhanced the flow velocity within the structure.Modifying the number and size of exhaust vents had minimal impact on the mass distribution of CO and CH4.The research can provide reference for controlling the internal gas environ-ment in related structures.
Air-supported membrane structureInternal flow fieldNumerical simulationMass fractions of gas
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