We study the detonation propagation in a channel geometry that suppresses detonation propagation in one direction, allows it in other direction, and does not create flow restrictions in the channel. The geometry consists of a series of divergent sections separated by wedges that form a sawtooth shape. Numerical simulation show that the detonation fails to propagate through this geometry in one ...

Abstract The rotating detonation characteristics of high-temperature hydrogen-rich gas were studied. Hydrogen-rich was generated by the pre-combustion hydrogen, and a experiment air subsequently performed. auto-initiation observed in experiment, influence pre-detonation tube ignition on steady propagation wave analyzed. results show that have ability to spontaneously form waves. operation has s...

For some decades, efforts have been made to exploit nonsteady combustion and gas dynamic phenomenon. The theoretical potential of nonsteady-flowmachines has led to the investigation of various oscillatoryflowdevices suchas pulse detonation engines, wave rotors, pulse jets, and nonsteady ejectors. This paper aims to provide a progress review of past and current research in developing a particula...

In this paper we present the result of measurement of thrust of single tube valve less Pulse detonation engine. The thrust generated by the repetitive detonation from a 48 mm inner diameter ,60 mm outer diameter and 70 cm length (various lengths of tube varies from 20 cm to 100 cm in the steps of 20 cm interval ) detonation tube was measured using load cell. Schelkin spiral was used an accelera...

In this study, Stability analysis of snow slab which is under detonation has developed in the present model. The model has been studied by using the basic concepts of non-detonation model and concepts of underwater explosions with appropriate modifications to the present studies. The studies have also been extended to account the effect of critical length variations at the time of detonation an...

In analogy to gas-dynamical detonation waves, which consist of a shock with an attached exothermic reaction zone, we consider herein nonlinear traveling wave solutions to the hyperbolic ("inviscid") continuum traffic equations. Generic existence criteria are examined in the context of the Lax entropy conditions. Our analysis naturally precludes traveling wave solutions for which the shocks trav...