Propagation Mechanism of Detonation in Rough Walled Tube

摘要：

1 Introduction Considerable attention has been given to flame or high speed deflagration control in orifice plates-filled tubes 1-7.There have also been numerous studies on the effect of orifice plates on combustion processes such as flame propagation or detonation to deflagration transition (DDT)7-11.While these do explore the propagation regimes of so-called Deflagration to Detonation (DDT) using orifice plates, they do not directly relate to the present study where the mechanism of a self-propagating detonation in a rough tube is investigated.The studies of propagation mechanism of detonation in rough tubes with spirals are still lacking.In the Shchelkin spiral, especially with small wire diameter and small pitch, there is an averaged or continuous effect of the spiral producing roughness on the propagation of the detonation 12.However, the orifice plates give a discrete effect on wave propagation via disturbance created by the reflection waves.The local phenomena of the interaction between the detonation and the orifice plates dominates the propagation, i.e.diffraction through the orifice opening, re-initiation upon reflection of the diffracted wave on the tube wall downstream of the orifice plate, etc., control the propagation phenomena.7

作者: LI Jian YANG Tianwei NING Jianguo

作者单位: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology Beijing 100081, China

会议类型: 国际会议

会议名称: The 2016 International Symposium on Safety Science and Technology(2016安全科学与技术国际会议)

会议地点: 昆明

会议语种:英文

页码: 600-605

在线出版日期: 2016-10-17（万方平台首次上网日期，不代表论文的发表时间）