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The estimation of the coefficient of equalization of velocities (D), and the wall effect factor (k) in a cylindrical flow–through packed bed reactor equipped with wire gauze packing is presented via properly truncated eigenfunction series subjected to regression analysis. The first numerical example indicates adequate fit of (posited) experimental data on the fraction of the total fluid in the wall layer by nonlinear regression, while the second example portrays the opposite situation where the same model fails to reliably represent the (posited) observation set. Regression upon linearization produces poor to absurd results.</p

On the Determination of Flow Characteristics in Packed Column Chemical Reactors with Wall Effects