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Title: CAPILLARY BARRIERS IN UNSATURATED FRACTURED ROCKS

Abstract

This work presents modeling studies investigating the effects of capillary barriers on fluid-flow and tracer-transport processes in the unsaturated zone of Yucca Mountain, Nevada, a potential site for storing high-level radioactive waste. These studies are designed to identify factors controlling the formation of capillary barriers and to estimate their effects on the extent of possible large-scale lateral flow in unsaturated fracture rocks. The modeling approach is based on a continuum formulation of coupled multiphase fluid and tracer transport through fractured porous rock. Flow processes in fractured porous rock are described using a dual-continuum concept. In addition, approximate analytical solutions are developed and used for assessing capillary-barrier effects in fractured rocks. This study indicates that under the current hydrogeologic conceptualization of Yucca Mountain, strong capillary-barrier effects exist for significantly diverting moisture flow.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Office of Scientific and Technical Information, Oak Ridge, TN
Sponsoring Org.:
USDOE
OSTI Identifier:
860283
Report Number(s):
LBNL-46876
MOL.20011015.0464 DC#28921; TRN: US0600580
DOE Contract Number:  
NA
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; ANALYTICAL SOLUTION; FLUID FLOW; FRACTURES; HIGH-LEVEL RADIOACTIVE WASTES; MOISTURE; SIMULATION; TRANSPORT; YUCCA MOUNTAIN

Citation Formats

Wu, Y S, Zhang, W, Pan, L, Hinds, J, and Bodvarsson, G. CAPILLARY BARRIERS IN UNSATURATED FRACTURED ROCKS. United States: N. p., 2000. Web. doi:10.2172/860283.
Wu, Y S, Zhang, W, Pan, L, Hinds, J, & Bodvarsson, G. CAPILLARY BARRIERS IN UNSATURATED FRACTURED ROCKS. United States. https://doi.org/10.2172/860283
Wu, Y S, Zhang, W, Pan, L, Hinds, J, and Bodvarsson, G. Sun . "CAPILLARY BARRIERS IN UNSATURATED FRACTURED ROCKS". United States. https://doi.org/10.2172/860283. https://www.osti.gov/servlets/purl/860283.
@article{osti_860283,
title = {CAPILLARY BARRIERS IN UNSATURATED FRACTURED ROCKS},
author = {Wu, Y S and Zhang, W and Pan, L and Hinds, J and Bodvarsson, G},
abstractNote = {This work presents modeling studies investigating the effects of capillary barriers on fluid-flow and tracer-transport processes in the unsaturated zone of Yucca Mountain, Nevada, a potential site for storing high-level radioactive waste. These studies are designed to identify factors controlling the formation of capillary barriers and to estimate their effects on the extent of possible large-scale lateral flow in unsaturated fracture rocks. The modeling approach is based on a continuum formulation of coupled multiphase fluid and tracer transport through fractured porous rock. Flow processes in fractured porous rock are described using a dual-continuum concept. In addition, approximate analytical solutions are developed and used for assessing capillary-barrier effects in fractured rocks. This study indicates that under the current hydrogeologic conceptualization of Yucca Mountain, strong capillary-barrier effects exist for significantly diverting moisture flow.},
doi = {10.2172/860283},
url = {https://www.osti.gov/biblio/860283}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {10}
}