In order to study the flame characteristics and fire development process in the fire process of fuel storage tank,a small-scale experiment was designed based on the similarity criterion,and the full-scale experimental verification was conduc-ted by numerical simulation.The influence of wind speed on the flame features and flame characteristics of storage tank fire was pointed out.The results show that the combustion of methanol gasoline will enter the stable combustion stage faster and maintain the stable stage for a longer time under the soft and light wind conditions.With the increase of wind speed,the flame height and flame angle decrease gradually and tend to be flat,and the maximum flame temperature decreases gradually,but the influence on the temperature distribution of flame axis is not obvious.When there is no wind,the increase of wind speed has little effect on the time to reach the maximum heat release rate,but has significant effect on the maximum heat release rate.Under the soft wind and light wind,the influence of wind speed on the time to reach the maximum heat release rate is great.Through the full-scale numerical simulation experimental verification,it is found that the error value is mainly distribu-ted below 15％,which has a certain reliability.The research results can provide design reference for the safety of fuel storage tank fire and its small-scale similar experiments.
关键词
储罐火灾/相似准则/火焰特征/热释放速率/稳定燃烧阶段
Key words
storage tank fire/similarity criterion/flame characteristics/heat release rate/steady combustion stage
维普
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