Two-Dimensional Basin Flow with Irregular Bottom Configuration
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Volume 129, Issue 6
Abstract
Two-dimensional flow from a point or line source is simulated in an irrigated basin with a nonlevel soil surface; the goal is to predict the distribution uniformity of infiltrated depths. The zero-inertia approximation to the equations of motion allows computation in both wet and dry areas. A fully implicit, nonlinear finite-difference scheme is developed for the solution, but practical numerical considerations suggest local linearization instead. Both isotropic and anisotropic resistance to flow are considered. Results in basins with irregular bottom configurations and small inflows show stream advance confined to the lowest elevations in the basin.
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Copyright © 2003 American Society of Civil Engineers.
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Received: Aug 22, 2000
Accepted: Dec 16, 2002
Published online: Nov 14, 2003
Published in print: Dec 2003
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