Solution of one problem of nonlinear adsorption kinetics by the method of lines

Abstract

The method of lines is constructed and proved for numerical solution of a nonlinear initial-boundary-value problem of parabolic type describing the adsorption of a substance from an aqueous solution of bounded volume by a spherical adsorbent. The method is developed under natural assumptions on the smoothness of the solution of the original problem. The rate of convergence of the method depends on the smoothness of the initial function and is of order O(h) if v0(x) ≡ 0, O(h1/2) if v0(x) ε C1[0, 1], and 0(|v 0(x)|W 12 (O,h)).