Passive Scalar Evolution in Peripheral Region

Details Passive Scalar Evolution in Peripheral Region Passive Scalar Evolution in Peripheral Region

2003-09-05

arxiv.org/abs/nlin/0309019v1

Nonlinear Sciences

Chaotic Dynamics

submitted to PRE

Scientific paper

10.1103/PhysRevE.69.036301

We consider evolution of a passive scalar (concentration of pollutants or temperature) in a chaotic (turbulent) flow. A universal asymptotic behavior of the passive scalar decay (homogenization) related to peripheral regions (near walls) is established. The passive scalar moments and its pair correlation function in the peripheral region are analyzed. A special case investigated in our paper is the passive scalar decay along a pipe.

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