Research Article
Jun 1966
Nonlinear Differential Equation of Drain Spacing
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VIEW THE REPLYPublication: Journal of the Irrigation and Drainage Division
Volume 92, Issue 2
Abstract
In determining the spacing required between parallel agricultural drains, an important consideration is the length of time required to lower the water table at its point of maximum height to the extent that it will be below the root zone of the crop under cultivation. This ti me is a function of, among other factors, the available depth of permeable material through which flow to the drains can take place. When this depth is considered as variable, the resulting partial differential equation, even using the simplifying Dupuit-Forchheimer assumption, is nonlinear, hence difficult to solve analytically.
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Published In
Journal of the Irrigation and Drainage Division
Volume 92 • Issue 2 • June 1966
Pages: 1 - 10
Copyright
© 1966 American Society of Civil Engineers.
History
Published in print: Jun 1966
Published online: Feb 11, 2021
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Authors
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William T. Moody, F.ASCE
Chf., Tech. Engrg. Analysis Branch, Div. of Design, Office of Chf. Engr., Bur. of Reclam., U.S. Dept. of the Interior, Denver, Colo
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