内部平板对半球形气云爆炸超压的影响

The influence of plate obstacle on the unconfined flammable gas cloud explosions

以乙炔 空气为介质,进行了平板障碍物对开敞空间气云爆炸威力影响的试验研究,比较测得的超压与时间曲线发现,有障碍物的气体爆燃超压呈多峰值形式,超压值随着障碍物几何尺寸的增加而增大,障碍物开孔率和位置的变化也对爆炸超压产生影响。障碍物的存在是开敞空间可燃气云爆炸产生巨大破坏力的主要原因之一。

Using ethyneair mixture as experimental object,the influence of obstacle on the UVCEs (Unconfined Vapor Cloud Explosions) was studiedThe overpressuretime histories were given and the relation was discussedCompared with the experimental results, the deflagration overpressure increases with increasing geometrical dimension of the obstacles 