Determination of detonation cell size and the role of transverse waves in two-dimensional detonations

✍ Scribed by K. Kailasanath; E.S. Oran; J.P. Boris; T.R. Young

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 779 KB
• Volume: 61
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(85)90101-4

✦ Synopsis

Two-dimensional time-dependent numerical simulations have been performed to study the structure and propagation of self-sustained detonations. The simulations are first used to develop a systematic approach for determining the detonation cell size. This approach involves simulating systems with channel widths both larger and smaller than the transverse cell spacing. The cell size estimated using this approach is compared with experimental data.

The simulations also provide insight into some aspects of the mechanism by which a two-dimensional, selfsustained detonation propagates. The evolution of the curvature of the transverse wave appears to be a crucial feature. It is shown that depending on the curvature of the transverse wave at the time of its reflection from either a neighboring transverse wave or a wall, flattened cells or pockets of unreacted gas can be formed.