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Title: Review and selection of unsaturated flow models

Abstract

Since the 1960`s, ground-water flow models have been used for analysis of water resources problems. In the 1970`s, emphasis began to shift to analysis of waste management problems. This shift in emphasis was largely brought about by site selection activities for geologic repositories for disposal of high-level radioactive wastes. Model development during the 1970`s and well into the 1980`s focused primarily on saturated ground-water flow because geologic repositories in salt, basalt, granite, shale, and tuff were envisioned to be below the water table. Selection of the unsaturated zone at Yucca Mountain, Nevada, for potential disposal of waste began to shift model development toward unsaturated flow models. Under the US Department of Energy (DOE), the Civilian Radioactive Waste Management System Management and Operating Contractor (CRWMS M&O) has the responsibility to review, evaluate, and document existing computer models; to conduct performance assessments; and to develop performance assessment models, where necessary. This document describes the CRWMS M&O approach to model review and evaluation (Chapter 2), and the requirements for unsaturated flow models which are the bases for selection from among the current models (Chapter 3). Chapter 4 identifies existing models, and their characteristics. Through a detailed examination of characteristics, Chapter 5 presents themore » selection of models for testing. Chapter 6 discusses the testing and verification of selected models. Chapters 7 and 8 give conclusions and make recommendations, respectively. Chapter 9 records the major references for each of the models reviewed. Appendix A, a collection of technical reviews for each model, contains a more complete list of references. Finally, Appendix B characterizes the problems used for model testing.« less

Authors:
; ;  [1]
  1. INTERA, Inc., Las Vegas, NV (United States)
Publication Date:
Research Org.:
TRW Environmental Safety Systems, Inc., Las Vegas, NV (United States); INTERA, Inc., Las Vegas, NV (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
145325
Report Number(s):
DOE/RW/00134-T11
ON: DE94015954; TRN: 94:015479
DOE Contract Number:
AC01-91RW00134
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 4 Apr 1994
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; 54 ENVIRONMENTAL SCIENCES; GROUND WATER; FLOW MODELS; EVALUATION; RADIOACTIVE WASTE DISPOSAL; SITE SELECTION; YUCCA MOUNTAIN; Yucca Mountain Project

Citation Formats

Reeves, M., Baker, N.A., and Duguid, J.O. Review and selection of unsaturated flow models. United States: N. p., 1994. Web. doi:10.2172/145325.
Reeves, M., Baker, N.A., & Duguid, J.O. Review and selection of unsaturated flow models. United States. doi:10.2172/145325.
Reeves, M., Baker, N.A., and Duguid, J.O. Mon . "Review and selection of unsaturated flow models". United States. doi:10.2172/145325. https://www.osti.gov/servlets/purl/145325.
@article{osti_145325,
title = {Review and selection of unsaturated flow models},
author = {Reeves, M. and Baker, N.A. and Duguid, J.O.},
abstractNote = {Since the 1960`s, ground-water flow models have been used for analysis of water resources problems. In the 1970`s, emphasis began to shift to analysis of waste management problems. This shift in emphasis was largely brought about by site selection activities for geologic repositories for disposal of high-level radioactive wastes. Model development during the 1970`s and well into the 1980`s focused primarily on saturated ground-water flow because geologic repositories in salt, basalt, granite, shale, and tuff were envisioned to be below the water table. Selection of the unsaturated zone at Yucca Mountain, Nevada, for potential disposal of waste began to shift model development toward unsaturated flow models. Under the US Department of Energy (DOE), the Civilian Radioactive Waste Management System Management and Operating Contractor (CRWMS M&O) has the responsibility to review, evaluate, and document existing computer models; to conduct performance assessments; and to develop performance assessment models, where necessary. This document describes the CRWMS M&O approach to model review and evaluation (Chapter 2), and the requirements for unsaturated flow models which are the bases for selection from among the current models (Chapter 3). Chapter 4 identifies existing models, and their characteristics. Through a detailed examination of characteristics, Chapter 5 presents the selection of models for testing. Chapter 6 discusses the testing and verification of selected models. Chapters 7 and 8 give conclusions and make recommendations, respectively. Chapter 9 records the major references for each of the models reviewed. Appendix A, a collection of technical reviews for each model, contains a more complete list of references. Finally, Appendix B characterizes the problems used for model testing.},
doi = {10.2172/145325},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 04 00:00:00 EDT 1994},
month = {Mon Apr 04 00:00:00 EDT 1994}
}

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