Decoupling and recoupling of detonation waves associated with sudden expansion

Diffraction of a plane detonation wave on a back-facing step in a gas suspension

“…The results are analyzed by comparisons with similar studies of detonation of gas mixtures [2][3][4][5]15]. Zel'dovich et al [15] were pioneers to establish the existence of three regimes of detonation propagation: subcritical, critical, and supercritical regimes.…”

“…Pantow et al [3] described the results of a numerical analysis of the flow structure and compared these results with experimental schlieren pictures in the case of propagation of cellular detonation in a channel with a cross-sectional discontinuity. The influence of the size of the wide part of the channel on the wave-propagation regime was analyzed.…”

“…We should note the publications [2][3][4][5] where the issues of diffraction of detonation waves on a backward-facing step were analyzed. Shepherd et al [2] described the results of their experimental studies and theoretical analysis.…”

Visualization of behaviors of a propagating flame quenching for hydrogen–air gas mixture

“…However, minimal flow resistance is also required for the flame arrester element. The quenching and extinguishing process of propagating flame has been studied by both theoretical and experimental analyses, using a dimensionless number, which is the ratio of the cellular structure width to the inside diameter of the pipe (Pantow et al 1996). Furthermore, a detonation wave was extinguished by a quenching element that had a very narrow gap (Obara et al 2006).…”

Experimental investigations of compressible vortex loops

“…6 The study into the evolution of detonation waves that suddenly expand has been motivated not only by the need to suppress accidental detonations but also in the interest of the applicability of such flows to the concept of pulse detonation engines (PDEs). [7][8][9][10][11][12] Upon diffraction of the detonation wave from a PDE, a vortex loop is formed immediately behind it.…”