干旱区生态环境知识资源中心(Arid): Variable thickness transient groundwater flow model theory and numerical implementation. [Radionuclide migration in ground water at Hanford]

Arid

DOI	10.2172/7353122
报告编号	BNWL-1703
来源ID	OSTI_ID: 7353122
	Variable thickness transient groundwater flow model theory and numerical implementation. [Radionuclide migration in ground water at Hanford]
	Kipp, K.L.; Reisenauer, A.E.; Cole, C.R.; Bryan, C.A.
英文摘要	Modeling of radionuclide movement in the groundwater system beneath the Hanford Reservation requires mathematical simulation of the two-dimensional flow in the unconfined aquifer. This was accomplished using the nonlinear, transient Boussinesq equation with appropriate initial and boundary conditions, including measured Columbia River stages and rates of wastewater disposal to the ground. The heterogeneous permeability (hydraulic conductivity) distribution was derived by solution of the Boussinesq equation along instantaneous streamtubes of flow employing a measured water table surface and a limited number of field-measured hydraulic conductivity values. Use of a successive line over-relaxation technique with unequal time steps resulted in a more rapid convergence of the numerical solution than with previous techniques. The model was used to simulate the water table changes for the period 1968 through 1973 using known inputs and boundary conditions. A comparison of calculated and measured water table elevations was made at specific well locations and the quality of the verification simulation was evaluated using a data retrieval and display system. Agreement between the model results and measured data was good over two-thirds of the Hanford Reservation. The capability of the model to simulate flow with time-varying boundary conditions, complex boundary shapes, and a heterogeneous distribution of aquifer properties was demonstrated.
出版年	1976
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	54 ENVIRONMENTAL SCIENCES ; GROUND WATER ; FLUID FLOW ; HAPO ; HYDROLOGY ; RADIONUCLIDE MIGRATION ; AQUIFERS ; ENVIRONMENT ; EQUATIONS ; HYDRODYNAMICS ; MATHEMATICAL MODELS ; ENVIRONMENTAL TRANSPORT ; FLUID MECHANICS ; HYDROGEN COMPOUNDS ; MASS TRANSFER ; MECHANICS ; NATIONAL ORGANIZATIONS ; OXYGEN COMPOUNDS ; US AEC ; US ERDA ; US ORGANIZATIONS ; WATER 510300* -- Environment, Terrestrial-- Radioactive Materials Monitoring & Transport-- (-1989) ; 510500 -- Environment, Terrestrial-- Site Resource & Use Studies-- (-1989) ; 520300 -- Environment, Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
URL	http://www.osti.gov/scitech/servlets/purl/7353122
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/259765
推荐引用方式 GB/T 7714	Kipp, K.L.,Reisenauer, A.E.,Cole, C.R.,et al. Variable thickness transient groundwater flow model theory and numerical implementation. [Radionuclide migration in ground water at Hanford],1976.