On the dispersion coefficients for poiseuille flow in a circular cylinder

For axisymmetric dispersion in laminar flow in a cylinder of circular cross section, we report the full time dependence of the first three dispersion coefficients, viz. X0, X1 and X2. We investigate the use of a variety of transverse averages. We also indicate the dependence of the dispersion coefficients on the initial solute distribution and on the chemical activity of the solute.

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