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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 ;
Library Call Number Additional Info Location Last
NTIS  PB-230 949 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
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)
NTIS Title Notes Doctoral thesis.
PUB Date Free Form 1973,
Category Codes 8H; 48G
NTIS Prices PC A09/MF A01
Document Type NT
Cataloging Source NTIS/MT
Control Number 326587796
Origin NTIS
Type CAT