Transient Dispersion in Uniform Media Flow

by Hung Tao Shen, (A.M.ASCE), Engrg. Analyst; Sargent & Lundy, Chicago, Ill.,

Serial Information: Journal of the Hydraulics Division, 1976, Vol. 102, Issue 6, Pg. 707-716

Document Type: Journal Paper


Analytical solutions are developed for the transient dispersion from a finite line source or a rectangular plane source in saturated steady uniform porous media flow. The sources are oriented normal to the flow with time-dependent concentrations. Longitudinal, lateral, transverse dispersion, radioactive decay, and linear equilibrium adsorption are considered. The solutions provide an efficient means of analyzing two or three-dimensional transient dispersion of nonconservative substances in uniform seepage. An example is given to depict the effects of decay and adsorption.

Subject Headings: Transient flow | Uniform flow | Porous media flow | Decomposition | Adsorption | Flow duration | Time dependence | Linear functions

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