Gaseous detonation in different structural ducts

This article has reviewed the behavior of gaseous detonation propagated in straight ducts and nonstraight ducts. Detonation limits are extended by low-velocity self-sustaining detonation in narrow gap and roughness pipe of straight ducts, which is caused by instability, while in obstacle-equipped ducts of straight ducts, detonation failure is led by diffraction and detonation reignition is led by reflection. Furthermore, the propagation mechanism of detonation around the obstacle is adopted in bend ducts and branch ducts. The objective of this study is to clarify the detonation behavior in complex structures, through the state of basic theories and typical experiment conclusions.