基于CFD技术的埋地油罐油气爆炸后果模拟研究

Study on Gas Explosion Consequences Simulation for Underground Oil Tank Based on CFD Technology

针对埋地油罐油气爆炸后果的危险性,采用一种基于CFD技术的事故模拟方法对埋地油罐不同油气爆炸浓度情况进行分析研究。结果表明,埋地罐中心点火,爆炸测点处压力大;在爆炸极限范围内,埋地油罐最大爆炸超压变化随油气浓度呈先增后减趋势线型,其最坏情况出现在油气化学当量比浓度附近。

For the risk of underground oil tank gas explosion, a new method based on the CFD numerical simulation tech- nology is used to study different concentrations of oil tank explosion. The results show that the explosion pressure is larger than that in other area if the center of tmdergrotmd tank is ignited; if withtin the explosion limits, explosion overpressure in- creases firstly, then decreases with the increase of gas concentration and the worst condition shows near the gas equivalence ratio concentration.