TOUGH Simulations of the Updegraff's Set of Fluid and Heat Flow Problems

Moridis, G.J.

doi:10.2172/974174

Cited by 30 publications

(27 citation statements)

References 8 publications

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“…A general requirement is that there exists approximate thermodynamic equilibrium in (almost) all grid blocks at (almost) all times [Pruess and Narasimhan, 1985]. For systems of regular grid blocks referenced to global coordinates in cylindrical (r,z) and/or Cartesian (x,y,z) systems, Equation (3.5) is identical to a conventional finite difference formulation [Peaceman, 1977;Moridis and Pruess, 1992].…”

Section: Implications Of the Space Discretization Approachmentioning

confidence: 99%

TOUGH+Hydrate v1.0 User's Manual: A Code for the Simulation of System Behavior in Hydrate-Bearing Geologic Media

Moridis¹,

Kowalsky²,

Pruess³

2008

221

253

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TOUGH+HYDRATE v1.0 is a new code for the simulation of the behavior of hydrate-bearing geologic systems. By solving the coupled equations of mass and heat balance, TOUGH+HYDRATE can model the non-isothermal gas release, phase behavior and flow of fluids and heat under conditions typical of common natural CH 4 -hydrate deposits (i.e., in the permafrost and in deep ocean sediments) in complex geological media at any scale (from laboratory to reservoir) at which Darcy's law is valid. TOUGH+HYDRATE v1.0 includes both an equilibrium and a kinetic model of hydrate formation and dissociation. The model accounts for heat and up to four mass components, i.e., water, CH 4 , hydrate, and water-soluble inhibitors such as salts or alcohols. These are partitioned among four possible phases (gas phase, liquid phase, ice phase and hydrate phase). Hydrate dissociation or formation, phase changes and the corresponding thermal effects are fully described, as are the effects of inhibitors. The model can describe all possible hydrate dissociation mechanisms, i.e., depressurization, thermal stimulation, salting-out effects and inhibitor-induced effects.TOUGH+HYDRATE is the first member of TOUGH+, the successor to the TOUGH2 [Pruess et al., 1991] family of codes for multi-component, multiphase fluid and heat flow developed at the Lawrence Berkeley National Laboratory. It is written in standard FORTRAN 95, and can be run on any computational platform (workstation, PC, Macintosh) for which such compilers are available. iv v

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Section: Implications Of the Space Discretization Approachmentioning

confidence: 99%

TOUGH+Hydrate v1.0 User's Manual: A Code for the Simulation of System Behavior in Hydrate-Bearing Geologic Media

Moridis¹,

Kowalsky²,

Pruess³

2008

221

253

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“…For structured rectangular grids ( fig. 2-5A), the CVFD methodology is identical to a conventional or standard finite-difference approximation (for example, Peaceman 1977, andMoridis andPruess 1992). Simple structured grids consisting of hexagons, equilateral triangles, and rectangles meet the CVFD connection requirements.…”

Section: Generalized Structured and Unstructured Gridsmentioning

confidence: 99%

Documentation for the MODFLOW 6 Groundwater Flow Model

Langevin¹,

Hughes²,

Banta³

et al. 2017

Techniques and Methods

177

141

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment-visit https://www.usgs.gov or call 1-888-ASK-USGS.For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov/.Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. PrefaceThe report describes the Groundwater Flow Model for the U.S. Geological Survey (USGS) modular hydrologic simula tion program called MODFLOW 6. The program can be be downloaded from the USGS for free. The performance of the Groundwater Flow Model has been tested in a variety of applications. Future applications, however, might reveal errors that were not detected in the test simulations. Users are requested to send notification of any errors found in this model documentation report or in the model program to the MODFLOW contact listed on the Web page. Updates might be made to both the report and to the model program. Users can check for updates on the MODFLOW Web page (https://doi.org/10.5066/F76Q1VQV).

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“…Time-dependent Neumann conditions can be specified by making sink and source rates time dependent. Time-dependent Dirichlet conditions can also be implemented; these are realized by placing appropriate sinks or sources in the "boundary blocks" (for an example, see Moridis and Pruess, 1992). a T2VOC offers an alternative and more elegant means for implementing Dirichlet conditions, which provides savings in computational work along with added user conveniences in running simulation problems.…”

Section: Initial and Boundary Conditionsmentioning

confidence: 99%

T2VOC user`s guide

Falta

Pruess²,

Finsterle

et al. 1995

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DISCLATMERThis document was prcparcd as M account of w o k sponsored by the US& Stam G o v u n m a r While this document is belicvd IO ABSTRACTT2VOC is a numerical simulator for three-phase, three-component, non-isothermal flow of water, air, and a volatile organic compound (VOC) in multidimensional heterogeneous porous media. Developed at the Lawrence Berkeley Laboratory, T2VOC is an extension of the TOUGH2 general-purpose simulation program.This report is a self-contained guide to application of T2VOC to subsurface contamination problems involving nonaqueous phase liquids (NAPLs). It gives a technical description of the T2VOC code, including a discussion of the physical processes modeled, and the mathematical and numerical methods used. Detailed instructions for preparing input data are presented along with several illustrative sample problems.

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TOUGH Simulations of the Updegraff's Set of Fluid and Heat Flow Problems

Cited by 30 publications

References 8 publications

TOUGH+Hydrate v1.0 User's Manual: A Code for the Simulation of System Behavior in Hydrate-Bearing Geologic Media

TOUGH+Hydrate v1.0 User's Manual: A Code for the Simulation of System Behavior in Hydrate-Bearing Geologic Media

Documentation for the MODFLOW 6 Groundwater Flow Model

T2VOC user`s guide

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