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应用FLUENT模拟并与现场实测结果对比分析,研究矿用防爆车在井下巷道内CO排放及运移扩散规律。研究应用FLUENT模拟矿用防爆车以7 m/s的速度在风速为3 m/s的巷道内行驶时排放CO的浓度分布状况,得出t=1~5 s內矿用防爆车排出CO浓度动态分布,并得出监测静态点CO浓度变化规律,模拟结果表明,井下巷道内矿用防爆车排放CO气体浓度大于24×10~(-6)的区域位于车尾至车尾后6~7 m范围内,且在1 s内降低至小于24×10~(-6),车身前方CO浓度始终为19×10~(-6)。为了对比分析,在实际巷道内布置3个实测点进行CO浓度监测,实测结果验证了模拟结果的正确性。
By using FLUENT simulation and comparative analysis with the field test results, the CO emission, migration and diffusion rules of mine explosion-protected vehicles in underground tunnels are studied. The application of FLUENT simulated mine explosion-proof vehicle at a speed of 7 m / s in the roadway with a wind speed of 3 m / s CO concentration distribution of discharge, obtained t = 1 ~ 5 s mine explosion-proof vehicle exhaust CO concentration The results show that the area where CO gas concentration is more than 24 × 10 ~ (-6) is from 6 to 7 at the rear of the car m, and decreased to less than 24 × 10 -6 in 1 s. The CO concentration in front of the vehicle body was always 19 × 10 -6. In order to compare and analyze, the actual concentration of CO concentration in the real roadway is measured by three measured points. The measured results verify the correctness of the simulation results.