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Title: Multiphase Flow Analysis in Hydra-TH

Abstract

This talk presents an overview of the multiphase flow efforts with Hydra-TH. The presentation begins with a definition of the requirements and design principles for multiphase flow relevant to CASL-centric problems. A brief survey of existing codes and their solution algorithms is presented before turning the model formulation selected for Hydra-TH. The issues of hyperbolicity and wellposedness are outlined, and a three candidate solution algorithms are discussed. The development status of Hydra-TH for multiphase flow is then presented with a brief summary and discussion of future directions for this work.

Authors:
 [1];  [1];  [1];  [1];  [2]
  1. Los Alamos National Laboratory
  2. Idaho National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
DOE/LANL
OSTI Identifier:
1044125
Report Number(s):
LA-UR-12-22364
TRN: US201214%%324
DOE Contract Number:
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: CASL Virtual Roundtable ; 2012-06-11 - 2012-06-14 ; Los Alamos, New Mexico, United States
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICAL METHODS AND COMPUTING; ALGORITHMS; DESIGN; MULTIPHASE FLOW

Citation Formats

Christon, Mark A., Bakosi, Jozsef, Francois, Marianne M., Lowrie, Robert B., and Nourgaliev, Robert. Multiphase Flow Analysis in Hydra-TH. United States: N. p., 2012. Web.
Christon, Mark A., Bakosi, Jozsef, Francois, Marianne M., Lowrie, Robert B., & Nourgaliev, Robert. Multiphase Flow Analysis in Hydra-TH. United States.
Christon, Mark A., Bakosi, Jozsef, Francois, Marianne M., Lowrie, Robert B., and Nourgaliev, Robert. 2012. "Multiphase Flow Analysis in Hydra-TH". United States. doi:. https://www.osti.gov/servlets/purl/1044125.
@article{osti_1044125,
title = {Multiphase Flow Analysis in Hydra-TH},
author = {Christon, Mark A. and Bakosi, Jozsef and Francois, Marianne M. and Lowrie, Robert B. and Nourgaliev, Robert},
abstractNote = {This talk presents an overview of the multiphase flow efforts with Hydra-TH. The presentation begins with a definition of the requirements and design principles for multiphase flow relevant to CASL-centric problems. A brief survey of existing codes and their solution algorithms is presented before turning the model formulation selected for Hydra-TH. The issues of hyperbolicity and wellposedness are outlined, and a three candidate solution algorithms are discussed. The development status of Hydra-TH for multiphase flow is then presented with a brief summary and discussion of future directions for this work.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2012,
month = 6
}

Conference:
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  • A sub-meter-scale imbibition experiment has been analyzed using a finite element, multiphase-flow code. In the experiment, an initially dry cylindrical core of fractured volcanic tuff was saturated by contacting the ends with pressurized water. Our model discretely accounts for three primary fractures that may be present in the core, as indicated by measurements of porosity and saturation. We show that vapor transport has a small (less than 5%) effect on the speed of the wetting front. By using experimental results to estimate apparent spatial variations in permeability along the core, good agreement with measured, transient, saturation data was achieved. Themore » sensitivity of predicted transient wetting fronts to permeability data indicates a need for more extensive measurements. We conclude that it will be difficult to characterize an entire repository - where inhomogeneities due to variations in matrix and fracture properties are not well known - solely from the results of sub-meter-scale laboratory testing and deterministic modeling. 16 refs., 8 figs., 1 tab.« less
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