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Title: Results From an International Simulation Study on Couples Thermal, Hydrological, and Mechanical (THM) Processes Near Geological Nuclear Waste Repositories

Abstract

As part of the ongoing international DECOVALEX project, four research teams used five different models to simulate coupled thermal, hydrological, and mechanical (THM) processes near waste emplacement drifts of geological nuclear waste repositories. The simulations were conducted for two generic repository types, one with open and the other with back-filled repository drifts, under higher and lower postclosure temperatures, respectively. In the completed first model inception phase of the project, a good agreement was achieved between the research teams in calculating THM responses for both repository types, although some disagreement in hydrological responses is currently being resolved. In particular, good agreement in the basic thermal-mechanical responses was achieved for both repository types, even though some teams used relatively simplified thermal-elastic heat-conduction models that neglected complex near-field thermal-hydrological processes. The good agreement between the complex and simplified process models indicates that the basic thermal-mechanical responses can be predicted with a relatively high confidence level.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, Nevada
Sponsoring Org.:
USDOE
OSTI Identifier:
899278
Report Number(s):
NA
MOL.20061204.0243, DC# 48416; TRN: US0702026
DOE Contract Number:  
NA
Resource Type:
Journal Article
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; POSITIONING; RADIOACTIVE WASTES; SIMULATION; WASTES

Citation Formats

J. Rutqvist, D. Barr, J.T. Birkholzer, M. Chijimatsu, O. Kolditz, Q. Liu, Y. Oda, W. Wang, and C. Zhang. Results From an International Simulation Study on Couples Thermal, Hydrological, and Mechanical (THM) Processes Near Geological Nuclear Waste Repositories. United States: N. p., 2006. Web.
J. Rutqvist, D. Barr, J.T. Birkholzer, M. Chijimatsu, O. Kolditz, Q. Liu, Y. Oda, W. Wang, & C. Zhang. Results From an International Simulation Study on Couples Thermal, Hydrological, and Mechanical (THM) Processes Near Geological Nuclear Waste Repositories. United States.
J. Rutqvist, D. Barr, J.T. Birkholzer, M. Chijimatsu, O. Kolditz, Q. Liu, Y. Oda, W. Wang, and C. Zhang. Wed . "Results From an International Simulation Study on Couples Thermal, Hydrological, and Mechanical (THM) Processes Near Geological Nuclear Waste Repositories". United States. https://www.osti.gov/servlets/purl/899278.
@article{osti_899278,
title = {Results From an International Simulation Study on Couples Thermal, Hydrological, and Mechanical (THM) Processes Near Geological Nuclear Waste Repositories},
author = {J. Rutqvist and D. Barr and J.T. Birkholzer and M. Chijimatsu and O. Kolditz and Q. Liu and Y. Oda and W. Wang and C. Zhang},
abstractNote = {As part of the ongoing international DECOVALEX project, four research teams used five different models to simulate coupled thermal, hydrological, and mechanical (THM) processes near waste emplacement drifts of geological nuclear waste repositories. The simulations were conducted for two generic repository types, one with open and the other with back-filled repository drifts, under higher and lower postclosure temperatures, respectively. In the completed first model inception phase of the project, a good agreement was achieved between the research teams in calculating THM responses for both repository types, although some disagreement in hydrological responses is currently being resolved. In particular, good agreement in the basic thermal-mechanical responses was achieved for both repository types, even though some teams used relatively simplified thermal-elastic heat-conduction models that neglected complex near-field thermal-hydrological processes. The good agreement between the complex and simplified process models indicates that the basic thermal-mechanical responses can be predicted with a relatively high confidence level.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Aug 02 00:00:00 EDT 2006},
month = {Wed Aug 02 00:00:00 EDT 2006}
}