The time-scale for a point source injected mid-way

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The time-scale for a point source injected mid-way between two impermeable boundaries to become uniformly mixed across the section is given by the rule-of-thumb

where L is the distance between the two boundaries and D is the diffusion coefficient. Referring to the sketch below, consider a line of dye released instantaneously along the centerline of a shallow river so that the problem can be treated as one-dimensional

Reference no: EM13666975

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