The fast binary reaction in complex flows

a = 1 — Dp/2. The analogous result in a d—dimensional flow would be JW wd Dp d Dp 2. Jimenez and Martel (1991) checked that under time evolution, the material line that initially separated the two reactants becomes a convoluted spiral-type object with an empirical value of Dp of about 1.6 5/3, in agreement 

It should be remarked here that the length of this finite-width reactive interface in the mixing layer is continuously increasing, so that, in a closed container, it will eventually fill the whole system and at long times one should have Dp = 2. But during the times analyzed in the numerical experiment, the interface occupied only a small 

A related situation was described by Wonhas and Vassilicos (2002). They considered the chlorine monoxide deactivation process  

Within the reactive interface description, expression (5.18) obtained within the lamellar model in a straining flow can be used in the case of complex interfaces simply by replacing L by the interface length C. The production V, giving the effective rate of reaction, becomes 

We note that the scaling with Pe also applies to shear-type flows. 

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