Article ID Journal Published Year Pages File Type
824620 Comptes Rendus Mécanique 2006 10 Pages PDF
Abstract

Turbulent scalar mixing with chemical reaction is investigated in terms of the local geometrical features of the iso-scalar surfaces—‘scalar field topologies’—, using Direct Numerical Simulation data. Two scalars with identical initial distribution, one inert and the other obeying a prescribed Arrhenius-like chemical reaction, evolve in homogeneous isotropic turbulence with a mesh size 2563. The two local principal curvatures, k1 and k2, of

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Physical Sciences and Engineering Engineering Engineering (General)