Study of the mechanism of oscillatory solid-phase combustion by a non-linear chemical kinetic model

Feng, Chang; Zeng, Qingxuan; Wang, Liqiong; Fang, Xiao Jiao

doi:10.1039/ft9969202971

Cited by 11 publications

(9 citation statements)

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“…(1997b). We note that experimental work (which invariably involves some heat loss) as referenced in Matkowsky & Sivashinsky (1978), and the recent work of Feng et al . (1996) confirms the existence of this pulsating combustion.…”

Section: Introductionmentioning

confidence: 88%

An oscillatory route to extinction for solid fuel combustion waves due to heat losses

1998

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A numerical method is used to show that heat loss increases can lead to a perioddoubling route to the cessation of propagation of solid fuel combustion. Oscillatory combustion waves are found in certain regions of the parameter space. The behaviour of these oscillatory waves becomes more complex as the heat loss is increased until extinction of the combustion reaction occurs. Large excursions in temperature, above the adiabatic temperature, are possible in the non-adiabatic case close to this extinction point.

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Section: Introductionmentioning

confidence: 88%

An oscillatory route to extinction for solid fuel combustion waves due to heat losses

1998

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“…Based on their experimental observations, two thermokinetic models were developed by Davies [21] and by Feng et al [138] Both models adapt a scheme that was created to model homogeneous oscillators (BZ type reactions and cool flames). They are based on a binary composition of magnesium and ammonium perchlorate.…”

Section: Theoretical Approachesmentioning

confidence: 99%

“…The last parameter (the heat transfer coefficient) is a control parameter; steady-state or oscillatory behavior are obtained by varying this parameter. Figure 4 left, shows the [138] Chemical model Simplified model [a] Mg ( . evolution of the temperature and the concentration of intermediate species with time while Figure 4 right, shows the correlation between the two variables.…”

Section: Theoretical Approachesmentioning

confidence: 99%

Strobes: Pyrotechnic Compositions That Show a Curious Oscillatory Combustion

et al. 2012

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Strobes are pyrotechnic compositions which show an oscillatory combustion; a dark phase and a flash phase alternate periodically. The strobe effect has applications in various fields, most notably in the fireworks industry and in the military area. All strobe compositions mentioned in the literature were discovered by trial and error methods and the mechanisms involved remain unclear. Many oscillatory systems such as Belousov-Zhabotinsky reactions, cool flames, self-propagating high-temperature synthesis have been observed and theories developed to elucidate their unstable behavior based on chemical interactions or based on physical processes. These systems are compared to experimental observations made on strobe mixtures.

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“…Aufgrund ihrer experimentellen Beobachtungen haben Davies [21] und Feng [138] zwei thermokinetische Modelle entwickelt. Beide Modelle orientieren sich an einem, das für homogene Oszillatoren (BZ-Reaktionen und kalte Flammen) entworfen wurde.…”

Section: Die Theoretischen Modelleunclassified

“…Aufgrund ihrer experimentellen Beobachtungen haben Davies [21] und Feng [138] [21] vorgeschlagen und berücksichtigt die Temperaturabhängigkeit der Stroboskopreaktion. Zu diesem Zweck wird das Sal'nikov-Modell verwendet, das ursprünglich für kalte Flammen entworfen wurde.…”

Section: Die Theoretischen Modelleunclassified

Stroboskopgemische: pyrotechnische Mischungen mit oszillierendem Verbrennungsverhalten

Corbel

Lingen²,

Zevenbergen³

et al. 2012

Angewandte Chemie

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Stroboskopgemische sind pyrotechnische Zusammensetzungen, die ein oszillierendes Verbrennungsverhalten zeigen; eine Dunkel‐ und eine Leuchtphase alternieren periodisch. Der Stroboskopeffekt wird in verschiedenen Bereichen, aber hauptsächlich in der Feuerwerksindustrie und im militärischen Bereich angewendet. Alle Stroboskopgemische, die in der Literatur beschrieben werden, wurden durch systematisches Ausprobieren entdeckt und die zugrundeliegenden Mechanismen bleiben ungeklärt. Viele oszillierende Systeme wurden beobachtet, und es wurden Theorien entwickelt, die auf chemischen Prozessen oder physikalischen Prozessen beruhen, um ihr instabiles Verhalten aufzuklären. Diese Systeme werden mit experimentellen Beobachtungen an Stroboskopgemischen verglichen.

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Study of the mechanism of oscillatory solid-phase combustion by a non-linear chemical kinetic model

Cited by 11 publications

References 1 publication

An oscillatory route to extinction for solid fuel combustion waves due to heat losses

An oscillatory route to extinction for solid fuel combustion waves due to heat losses

Strobes: Pyrotechnic Compositions That Show a Curious Oscillatory Combustion

Stroboskopgemische: pyrotechnische Mischungen mit oszillierendem Verbrennungsverhalten

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