Artificial Ground-Water Recharge with Capillarity

Autor:	Harold R. Duke, Daniel K. Sunada, David B. McWhorter, Nestor Vincente Ortiz
Rok vydání:	1978
Předmět:	Soil test Groundwater flow Water table Capillary action Flow (psychology) General Engineering Soil science Groundwater recharge Hydraulic conductivity General Earth and Planetary Sciences Geotechnical engineering Porous medium Geology General Environmental Science
Zdroj:	Journal of the Irrigation and Drainage Division. 104:79-93
ISSN:	2690-3296 0044-7978
DOI:	10.1061/jrcea4.0001194
Popis:	The effect of capillarity on the transient response of the water table to recharge was evaluated by a numerical and a porous media model. The numerical model was developed to simulate the growth and spread of ground-water mounds taking into consideration the flow and storage in the capillary region. The contribution from the capillary region was described analytically in terms of recharge rates and the measureable soil properties of bubbling pressure, pore-size distribution index, and hydraulic conductivity. The numerical model was verified by comparing its predictions for various flow conditions with the result obtained from the porous media model. The effects of bubbling-pressure head, pore-size distribution index, initial saturated depth, depth to water table, and recharge rate on the predicted mound height were determined. It was shown that the effect of the capillary region significantly influences the growth and spread of ground-water mounds.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::844db89bf5eba54343301f5cce845e8b https://doi.org/10.1061/jrcea4.0001194 Zobrazit plný text záznamu