爆破器材2016，Vol.45Issue(5)：11-16,6.DOI:10.3969/j.issn.1001-8352.2016.05.003
硬脂酸粉尘爆炸过程中火焰传播试验及数值模拟
Experiment and Numerical Simulation on Flame Propagation in Stearic Acid Dust Explosion
摘要
Abstract
Flame propagation behavior of stearic acid dust explosion in semi-enclosed vertical combustion tube was studied by experiment and numerical simulation. The results were recorded by a high speed video camera and a thermal infrared imaging device, from which it is observed that the flame propagation velocity and flame temperature both increased at first and then decreased. Simulation results obtained by Fluent software show a good agreement with test results. Simula-tion results also indicate that flow velocity is higher than flame propagation velocity during the combustion process, which is the main reason for secondary dust formation and successive explosion.关键词
硬脂酸粉尘爆炸/火焰传播/火焰温度/数值模拟/气流速度Key words
stearic acid dust explosion/flame propagation/flame temperature/numerical simulation/flow velocity分类
资源环境引用本文复制引用
刘静平,赵金刚,潘峰,秋珊珊..硬脂酸粉尘爆炸过程中火焰传播试验及数值模拟[J].爆破器材,2016,45(5):11-16,6.基金项目
国家自然科学基金项目(51472119) （51472119）
江苏高校优势学科建设工程二期项目[苏政办发(2004)37号] （2004）
