Nonsteady-state combustion of metalless heterogeneous compounds

Gusachenko, L. K.

doi:10.1007/bf00750013

Cited by 2 publications

(2 citation statements)

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“…In models [94,95], the surface shape change is taken into account in the case of coarse-grained SP, which is the simplest for analysis. The binder surface is considered flat and parallel to the mean burning surface (the smallness of the binder fraction on the surface, which is proportional to its volume fraction, is usually given as a justification).…”

Section: Surface Shape Changementioning

confidence: 99%

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Analysis of unsteady solid-propellant combustion models (review)

Gusachenko

Зарко

2008

Combust Explos Shock Waves

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Recent studies of solid-propellant combustion models are briefly analyzed. The models are divided into purely one-dimensional (classical and phenomenological models with various generalizations of the Zel'dovich approach) and non-one-dimensional. The latter include models with local non-one-dimensionality, which is always accompanied by local unsteadiness. This all can be eliminated by averaging. The main disadvantage of unsteady solid-propellant combustion models, which is no fault of their authors, is the same as in the case of steady-state models: the lack of detailed information on chemical and physical processes in the condensed phase. Impropriety of extending the purely one-dimensional approach to the instability region is noted. Possible directions for further development of unsteady (and quasi-steady-state) solid-propellant combustion models for homogeneous compositions may involve accounting for local non-one-dimensionality and the unsteadiness due to instability of the subsurface reactions zone and verification of the possibility of the existence of chemical instability capable of causing similar non-one-dimensionality and unsteadiness.

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Section: Surface Shape Changementioning

confidence: 99%

“…In [96], this influence (the interaction of the components through the gas phase) is taken into account approximately and an attempt is made to take into account the thermal interaction of the components in the condensed phase. In [94,96], a statistical approach with a number of assumptions on the burning-surface shape was used.…”

Section: Surface Shape Changementioning

confidence: 99%