Superfast'' Reaction in Turbulent Flow with Potential Disorder

We explore the regime of ``superfast'' reactivity that has been predicted to occur in turbulent flow in the presence of potential disorder. Computer simulation studies confirm qualitative features of the previous renormalization group predictions, which were based on a static model of turb...

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Bibliographic Details
Published in:arXiv.org 1998-12
Main Authors: Nga le Tran, Jeong-Man, Park, Deem, Michael W
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Computer simulation
Dynamic models
Predictions
Reaction kinetics
Static models
Turbulence
Turbulent flow
Online Access:Get full text
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Summary:We explore the regime of ``superfast'' reactivity that has been predicted to occur in turbulent flow in the presence of potential disorder. Computer simulation studies confirm qualitative features of the previous renormalization group predictions, which were based on a static model of turbulence. New renormalization group calculations for a more realistic, dynamic model of turbulence show that the superfast regime persists. This regime, with concentration decay exponents greater than that for a well-mixed reaction, appears to be a general result of the interplay among non-linear reaction kinetics, turbulent transport, and local trapping by potential disorder.
ISSN:2331-8422
DOI:10.48550/arxiv.9810028