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OLS Field Name OLS Field Data
Main Title Steady-State Flow Patterns of Rainwater Seeping Through Bedded Soil With and Without Tile Drains.
Author Powel, Norris Ledford ;
CORP Author Iowa State Univ., Ames. Dept. of Agronomy.
Year Published 1973
Report Number OWRR-A-044-IA; 06257,; A-044-IA(2)
Stock Number PB-230 949
Additional Subjects Soil water ; Subsurface drainage ; Steady flow ; Tile drains ; Saturated soils ; Theses ; Computer programs ; Fluid infiltration ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-230 949 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 200p
Abstract
A modified Gram-Schmidt method was used to obtain the mathematical solution for two boundary value problems of soil water drainage. The flow medium was assumed to be water saturated. Only the steady-state condition was considered. In the first problem the seepage patterns of rainwater flowing through soil were determined. The soil is underlain by an impermeable barrier ata finite depth. A tile drain is half embedded in the impermeable barrier and located directly below furrows in the surface. In the second problem the seepage patterns of rainwater flowing through soil of infinite depth are determined. Water is allowed to stand in the drainage furrows. The solutions were obtained from potential theory by solving Laplace's equation to satisfy an appropriate set of boundary conditons. (Modified author abstract)