In this study, wall roughness is generated by inserting a Shchelkin spiral with different wire
diameter (δ) and pitch (L s). Roughness is defined as the ratio δ/L s. The effect of tube wall …

Propagation limits in gaseous detonation are an important problem in industrial chemical
processes due to safety protections and precautions. Propagation limits are also of great …

Orifice plates with large blockage ratios (BR= 0.691, 0.826, 0.923 and 0.962) are placed in
the entrance of the detonation transmission to investigate the artificially large-scale …

In this paper, detonation limits in stoichiometric methane-oxygen mixtures with varying tube
inner diameter and initial mixture pressure were investigated. Detonations in tubes with …

At the near-limit conditions, the behavior of detonation propagation manifests unstable
modes; those modes are classified into three types, ie, steady mode, fluctuation mode and …

Understanding flame acceleration (FA) and deflagration-to-detonation transition (DDT) is
important for combustion applications. However, DDT is a high-speed, nonlinear and …

Effects of tube diameter and equivalence ratio on reaction front propagations of
ethylene/oxygen mixtures in capillary tubes were experimentally analyzed using high speed …

The detonation propagation limits of CH 4-O 2 mixtures (φ= 0.25–2) in a macro-channel (D=
36 mm) and in micro-channels with heights of 2 mm, 4.5 mm and 7 mm were studied. The …

The present paper reports the results of an experimental study of detonation limits for H 2/O
2/Ar mixtures. Two stoichiometric mixtures (2H 2+ O 2+ 3Ar and 2H 2+ O 2) in three different …

A thorough understanding of the kinetics and dynamics of combusting mixtures is of
considerable interest, especially in regimes beyond the reach of current experimental …