Radiation preheating can trigger transition from deflagration to detonation

Details Radiation preheating can trigger transition from deflagration to detonation Radiation preheating can trigger transition from deflagration to detonation

2010-03-26

arxiv.org/abs/1003.5888v1

Physics

Fluid Dynamics

16 pages, 5 figures

Scientific paper

In this article effect of radiation preheating of unburnt mixture by propagating deflagration front is studied from the viewpoint of its ability to form a promoting temperature gradient and trigger transition to detonation. First, we investigate the effect of radiation preheating of the unburnt mixtures, when they are traveling through the wrinkles on the flame surface, in order to estimate a possibility of significant temperature rise. Subsequently, numerical simulations of a simplified mathematical model are carried out. They demonstrate plausibility of the proposed mechanism of the deflagration to detonation transition.

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