Numerical Simulation Of Fire Fume Refluence Layer And Fire Area Downwind Side Of Local Airflow Parameters

With the rapid development of the national economy,increasing demand for coal, raw coal output has fast growth,frequent occurrence of mine fires,mine safety has become a constraining production and further development of the main factors.Closed due to roadway construction,the complex case of fire fume,it's difficult to control the fire fume.This paper based on the CFD simulation software,set up of Underground fire smoke flow model of the fire area downwind side of the temperature distribution and local plume parameters of numerical simulation.From the simulation graph can be clearly seen that the highest temperature appears in the fire district which is out of the wind side, farther away from the fire zone,temperature, pressure,getting smaller and smaller.In this paper,to set a different airflow rate,smoke flow rate and temperature of smoke plume,fire fume refluence layer is calculated and numerical simulation.Analysis and simulation results show that the smaller wind speed,the large smoke flow rater,the higher the combustion temperature and the more obvious fume refluence layer.