A Mountain-Scale Thermal Hydrologic Model for Simulating FluidFlow and Heat Transfer in Unsaturated Fractured Rock

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A multidimensional, mountain-scale, thermal-hydrologic (TH) numerical model is presented for investigating unsaturated flow behavior in response to decay heat from the radioactive waste repository in the Yucca Mountain unsaturated zone (UZ), Nevada. The model, consisting of both two-dimensional (2-D) and three-dimensional (3-D) representations of the UZ repository system, is based on the current repository design, drift layout, thermal loading scenario, and estimated current and future climate conditions. This mountain-scale TH model evaluates the coupled TH processes related to mountain-scale UZ flow. It also simulates the impact of radioactive waste heat release on the natural hydrogeological system, including heat-driven processes occurring ... continued below

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Wu, Yu-Shu; Mukhopadhyay, Sumit; Zhang, Keni & Bodvarsson,Gudmundur S. May 25, 2005.

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Description

A multidimensional, mountain-scale, thermal-hydrologic (TH) numerical model is presented for investigating unsaturated flow behavior in response to decay heat from the radioactive waste repository in the Yucca Mountain unsaturated zone (UZ), Nevada. The model, consisting of both two-dimensional (2-D) and three-dimensional (3-D) representations of the UZ repository system, is based on the current repository design, drift layout, thermal loading scenario, and estimated current and future climate conditions. This mountain-scale TH model evaluates the coupled TH processes related to mountain-scale UZ flow. It also simulates the impact of radioactive waste heat release on the natural hydrogeological system, including heat-driven processes occurring near and far away from the emplacement tunnels or drifts. The model simulations predict thermally perturbed liquid saturation, gas- and liquid-phase fluxes, and water and rock temperature elevations, as well as the changes in water flux driven by evaporation/condensation processes and drainage between drifts. These simulations provide mountain-scale thermally perturbed flow fields for assessing the repository performance under thermal loading conditions.

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  • Journal Name: Journal of Contaminant Hydrology; Journal Volume: 86; Journal Issue: 1-2; Related Information: Journal Publication Date: 19 April2006

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  • Report No.: LBNL--57921
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 891620
  • Archival Resource Key: ark:/67531/metadc884018

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  • May 25, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Sept. 30, 2016, 2:28 p.m.

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Wu, Yu-Shu; Mukhopadhyay, Sumit; Zhang, Keni & Bodvarsson,Gudmundur S. A Mountain-Scale Thermal Hydrologic Model for Simulating FluidFlow and Heat Transfer in Unsaturated Fractured Rock, article, May 25, 2005; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc884018/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.