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Title: UNSAT-H Version 2. 0: Unsaturated soil water and heat flow model

Abstract

This report documents UNSAT-H Version 2.0, a model for calculating water and heat flow in unsaturated media. The documentation includes the bases for the conceptual model and its numerical implementation, benchmark test cases, example simulations involving layered soils and plant transpiration, and the code listing. Waste management practices at the Hanford Site have included disposal of low-level wastes by near-surface burial. Predicting the future long-term performance of any such burial site in terms of migration of contaminants requires a model capable of simulating water flow in the unsaturated soils above the buried waste. The model currently used to meet this need is UNSAT-H. This model was developed at Pacific Northwest Laboratory to assess water dynamics of near-surface, waste-disposal sites at the Hanford Site. The code is primarily used to predict deep drainage as a function of such environmental conditions as climate, soil type, and vegetation. UNSAT-H is also used to simulate the effects of various practices to enhance isolation of wastes. 66 refs., 29 figs., 7 tabs.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest Lab., Richland, WA (USA)
Sponsoring Org.:
DOE/DP
OSTI Identifier:
6820284
Report Number(s):
PNL-6779
ON: DE90011794
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; FLUID FLOW; MATHEMATICAL MODELS; GROUND DISPOSAL; ENVIRONMENTAL IMPACTS; HEAT FLOW; LOW-LEVEL RADIOACTIVE WASTES; BENCH-SCALE EXPERIMENTS; COMPARATIVE EVALUATIONS; COMPUTER CODES; COMPUTER PROGRAM DOCUMENTATION; COMPUTERIZED SIMULATION; DRAINAGE; EVAPORATION; FLOW MODELS; FOURIER ANALYSIS; HANFORD RESERVATION; HEAT; PLANTS; RADIOACTIVE WASTE MANAGEMENT; RADIONUCLIDE MIGRATION; SOILS; TRANSPIRATION; UPTAKE; WATER; ENERGY; ENVIRONMENTAL TRANSPORT; HYDROGEN COMPOUNDS; MANAGEMENT; MASS TRANSFER; MATERIALS; NATIONAL ORGANIZATIONS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; SIMULATION; US DOE; US ERDA; US ORGANIZATIONS; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES; 052002* - Nuclear Fuels- Waste Disposal & Storage; 990200 - Mathematics & Computers

Citation Formats

Fayer, M J, and Jones, T L. UNSAT-H Version 2. 0: Unsaturated soil water and heat flow model. United States: N. p., 1990. Web. doi:10.2172/6820284.
Fayer, M J, & Jones, T L. UNSAT-H Version 2. 0: Unsaturated soil water and heat flow model. United States. doi:10.2172/6820284.
Fayer, M J, and Jones, T L. Sun . "UNSAT-H Version 2. 0: Unsaturated soil water and heat flow model". United States. doi:10.2172/6820284. https://www.osti.gov/servlets/purl/6820284.
@article{osti_6820284,
title = {UNSAT-H Version 2. 0: Unsaturated soil water and heat flow model},
author = {Fayer, M J and Jones, T L},
abstractNote = {This report documents UNSAT-H Version 2.0, a model for calculating water and heat flow in unsaturated media. The documentation includes the bases for the conceptual model and its numerical implementation, benchmark test cases, example simulations involving layered soils and plant transpiration, and the code listing. Waste management practices at the Hanford Site have included disposal of low-level wastes by near-surface burial. Predicting the future long-term performance of any such burial site in terms of migration of contaminants requires a model capable of simulating water flow in the unsaturated soils above the buried waste. The model currently used to meet this need is UNSAT-H. This model was developed at Pacific Northwest Laboratory to assess water dynamics of near-surface, waste-disposal sites at the Hanford Site. The code is primarily used to predict deep drainage as a function of such environmental conditions as climate, soil type, and vegetation. UNSAT-H is also used to simulate the effects of various practices to enhance isolation of wastes. 66 refs., 29 figs., 7 tabs.},
doi = {10.2172/6820284},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {4}
}