Dynamics and Stability of a Weak Detonation Wave

1999 ◽  
Vol 202 (3) ◽  
pp. 547-569 ◽  
Author(s):  
Anders Szepessy
Keyword(s):  
Detonation Wave ◽  
Weak Detonation

The dynamics of spinning detonation waves

1976 ◽  
Vol 348 (1654) ◽  
pp. 299-316 ◽  
Keyword(s):  
Detonation Wave ◽  
Acoustic Waves ◽  
Fluid Motion ◽  
Dynamical Theory ◽  
Detonation Waves ◽  
Spinning Detonation ◽  
Rate Of Reaction ◽  
Rotating Wave ◽  
Chemically Reacting ◽  
Weak Detonation

The fluid motion of chemically reacting gases in a weak detonation wave is examined with a view to finding a dynamical theory of the spin phenomenon. It is shown that a reacting gas in which the rate of reaction increases with temperature is unstable with respect to wave motion. The amplitude of any wave tends to increase exponentially with time until the growth rate is checked by some dissipative process. Two such processes are examined: first, the drag on a rotating wave at the boundary of the tube, and secondly, the development of weak transverse shocks from the large amplitude acoustic waves in the reaction zone. The formulae obtained are compared with observations and are shown to be not inconsistent with the proposed mechanism of the spinning detonation wave.

Modelling of detonation wave parameters, initiation and hazard of chemically active bubble systems

2002 ◽  
Vol 12 (7) ◽  
pp. 403-412 ◽  
Author(s):  
P. A. Fomin ◽  
K. Mitropetros ◽  
H. Hieronymus ◽  
J. Steinbach
Keyword(s):  
Detonation Wave ◽  
Wave Parameters

STUDY OF THE HEAD ON DETONATION WAVE STRUCTURE IN GASEOUS EXPLOSIVES

1987 ◽  
Vol 48 (C4) ◽  
pp. C4-119-C4-124
Author(s):  
H. N. PRESLES ◽  
P. BAUER ◽  
C. GUERRAUD ◽  
D. DESBORDES
Keyword(s):  
Detonation Wave ◽  
Wave Structure

RANKING OF FUEL-AIR MIXTURES IN TERMS OF THEIR PROPENSITYTO DEFLAGRATION-TO-DETONATION TRANSITION

2020 ◽  
Author(s):  
S. M. FROLOV ◽  
◽  
V. I. ZVEGINTSEV ◽  
V. S. AKSENOV ◽  
I. V. BILERA ◽  
...  
Keyword(s):  
Detonation Wave ◽  
The Other ◽  
Practical Application ◽  
Deflagration To Detonation Transition ◽  
Other Hand ◽  
Pressure Gain Combustion ◽  
Reactive Mixture ◽  
Detonation Transition ◽  
The One ◽  
Energy Converting

The term "detonability" with respect to fuel-air mixtures (FAMs) implies the ability of a reactive mixture of a given composition to support the propagation of a stationary detonation wave in various thermodynamic and gasdynamic conditions. The detonability of FAMs, on the one hand, determines their explosion hazards during storage, transportation, and use in various sectors of the economy and, on the other hand, the possibility of their practical application in advanced energy-converting devices operating on detonative pressure gain combustion.

Nonlinear dynamics of pulsating detonation wave with two-stage chemical kinetics in the shock-attached frame

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yaroslava E. Poroshyna ◽  
Aleksander I. Lopato ◽  
Pavel S. Utkin
Keyword(s):  
Wave Propagation ◽  
Detonation Wave ◽  
Model Comparison ◽  
Approximation Order ◽  
Transition Regime ◽  
Stage Model ◽  
Two Stage ◽  
One Dimensional ◽  
Kinetics Of ◽  
Detonation Wave Propagation

Abstract The paper contributes to the clarification of the mechanism of one-dimensional pulsating detonation wave propagation for the transition regime with two-scale pulsations. For this purpose, a novel numerical algorithm has been developed for the numerical investigation of the gaseous pulsating detonation wave using the two-stage model of kinetics of chemical reactions in the shock-attached frame. The influence of grid resolution, approximation order and the type of rear boundary conditions on the solution has been studied for four main regimes of detonation wave propagation for this model. Comparison of dynamics of pulsations with results of other authors has been carried out.

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