干旱区生态环境知识资源中心(Arid): UNSAT-H Version 1. 0: unsaturated flow code documentation and applications for the Hanford Site

Arid

DOI	10.2172/5368246
报告编号	PNL-5899
来源ID	OSTI_ID: 5368246
	UNSAT-H Version 1. 0: unsaturated flow code documentation and applications for the Hanford Site
	Fayer, M.J.; Gee, G.W.; Jones, T.L.
英文摘要	Waste mangement practices at the Hanford Site have relied havily on near-surface burial. Predicting the future performance of any burial site in terms of the migration of buried contaminants requires a model capable of simulating water flow in the unsaturated soils above the buried waste. The model currently being developed to meet this need is UNSAT-H, which was developed at Pacific Northwest Laboratory for assessing the water dynamics of near-surface waste-disposal sites at the Hanfrod Site. The code will primarily be used to predict deep drainage (i.e., recharge) as a function of environmental conditions such as climate, soil type, and vegetation. UNSAT-H will also simulate various waste-management practices such as placing surface barriers over waste sites. UNSAT-H is a one-dimensional model that simulates the dynamics processes of infiltration, drainage, redistribution, surface evaporation, and uptake of water from soil by plants. UNSAT-H is designed to utilize two auxiliary codes. These codes are DATAINH, which is used to process the input data, and DATAOUT, which is used to process the UNSAT-H output. Operation of the code requires three separate steps. First, the problem to be simulated must be conceptualized in terms of boundary conditions, available data, and soil properties. Next, the data must be correctly formatted for input. Finally, the unput data must be processed, UNSAT-H run, and the output data processed for analysis. This report includes three examples of code use. In the first example, a benchmark test case is run in which the results of UNSAT-H simulations of infiltration are compared with an analytical solution and a numerical solution. The comparisons show excellent agreement for the specific test case, and this agreement provides vertification of the infiltration portion of the UNSAT-H code. The other two examples of code use are a simulation of a layered soil and one of plant transpiration.
出版年	1986
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS ; 54 ENVIRONMENTAL SCIENCES ; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES ; 58 GEOSCIENCES ; FLOW MODELS ; RADIONUCLIDE MIGRATION ; U CODES ; DOCUMENTATION ; COMPUTERIZED SIMULATION ; GROUND WATER ; SEDIMENTS ; SOILS ; TRANSPIRATION ; COMPUTER CODES ; ENVIRONMENTAL TRANSPORT ; HYDROGEN COMPOUNDS ; MASS TRANSFER ; MATHEMATICAL MODELS ; OXYGEN COMPOUNDS ; SIMULATION ; WATER 053000* -- Nuclear Fuels-- Environmental Aspects ; 520301 -- Environment, Aquatic-- Radioactive Materials Monitoring & Transport-- Water-- (1987) ; 510301 -- Environment, Terrestrial-- Radioactive Materials Monitoring & Transport-- Soil-- (-1987) ; 052002 -- Nuclear Fuels-- Waste Disposal & Storage ; 580100 -- Geology & Hydrology-- (-1989)
URL	http://www.osti.gov/scitech/servlets/purl/5368246
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/263856
推荐引用方式 GB/T 7714	Fayer, M.J.,Gee, G.W.,Jones, T.L.. UNSAT-H Version 1. 0: unsaturated flow code documentation and applications for the Hanford Site,1986.