Solution of the Advection-Dispersion Equation: Continuous Load of Finite Duration
Publication: Journal of Environmental Engineering
Volume 122, Issue 9
Abstract
Field studies of solute fate and transport in streams and rivers often involve an experimental release of solutes at an upstream boundary for a finite period of time. A review of several standard references on surface-water-quality modeling indicates that the analytical solution to the constant-parameter advection-dispersion equation for this type of boundary condition has been generally overlooked. Here an exact analytical solution that considers a continuous load of finite duration is compared to an approximate analytical solution presented elsewhere. Results indicate that the exact analytical solution should be used for verification of numerical solutions and other solute-transport problems wherein a high level of accuracy is required.
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Published In
Journal of Environmental Engineering
Volume 122 • Issue 9 • September 1996
Pages: 830 - 832
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Sep 1, 1996
Published in print: Sep 1996
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