Entropic Skins Geometry Applied to Dynamics of Turbulent Reactive Fronts

Authors : Diogo QUEİROS-CONDE, Michel FEİDT

Pages : 11-19

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Publication Date : 2008-03-01

Article Type : Research Paper

Abstract :The determination of the velocity UT of a turbulent propagating interface resulting from the interaction between a turbulent intensity U’ and a reactive front with a laminar velocity UL is still a fundamental and open problem. In this paper, we propose a new approach to deal with this phenomenon by introducing a geometrical structure called entropic skins geometry based on scale entropy and its dynamics in scale-space. In the specific case insert ignore into journalissuearticles values(called parabolic scaling); of equipartition of « scale-evolutivity » through scale space, we derive a law for turbulent velocity. This law has a second-order logarithmic form which is verified by experimental data.
Keywords : turbulent reactive fronts, turbulent combustion, scale dependent fractals, entropic skins geometry, parabolic scaling, Yakhots law, scale entropy diffusion equation, scale diffusivity