Recent work on gaseous detonations

Abstract

We describe recent analytical and numerical results on stability and behavior of viscous and inviscid detonation waves obtained by dynamical systems/Evans function techniques like those used to study shock and reaction diffusion waves. In the first part, we give a broad description of viscous and inviscid results for 1D perturbations; in the second, we focus on inviscid high-frequency stability in multi-D and associated questions in turning point theory/WKB expansion.

A parallel adaptive method for simulating shock-induced combustion with detailed chemical kinetics in complex domains

“…Accidental internal detonation waves are a common threat to the pipeline systems of petrochemical or nuclear fuel processing plants. In order to quantify the failure potential of piping structures, especially at bends, accurate detonation pressure histories are required [55]. Particularly for low initial pressures, and therefore larger cellular structures, detonation propagation through bends is rather complex.…”

Detonation driver for enhancing shock tube performance

“…In passing, it may be noted that the issue of direct initiation is not immediately important in facility development unlike the issue of repeatability. Direct initiation and the issues related to deflagration-to-detonation transition have been the subject of much study such as, for example, the recent works by Nettleton (2002) and Thomas and Bambrey (2002). In our experience, the repeatability of a shock-induced detonation-driven shock tube is excellent, being primarily determined by the ability to control the diaphragm breakage process.…”

Numerical Simulation of Formation of Cellular Heterogeneous Detonation of Aluminum Particles in Oxygen

“…The mechanisms that ensure the cellular character of detonation play an important role in the deflagration-to-detonation transition in bounded volumes and in passage of detonation into an open space. Problems of cellular detonation in gas mixtures have been discussed in many papers (see the reviews [1][2][3][4]). …”