Model:CVFEM Rift2D: Difference between revisions

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|Spatialscale=Continental
|Spatialscale=Continental
|One-line model description=multi-physics numerical model that simulates rock deformation, fluid flow, solute transport and heat transfer in response to ice sheet loading of multiple cycles
|One-line model description=multi-physics numerical model that simulates rock deformation, fluid flow, solute transport and heat transfer in response to ice sheet loading of multiple cycles
|Extended model description=We have developed a hybrid numerical model at a continental scale via control volume finite element (finite volume) and regular finite element methods to evaluate the pore pressure evolution, brine migration, solute transport and heat transfer in the subsurface formations in response to ice sheet loading of multiple glacial cycles.
|Extended model description=We have developed a hybrid numerical model at a continental scale via control volume finite element (finite volume) and regular finite element methods to evaluate the stress variation, pore pressure evolution, brine migration, solute transport and heat transfer in the subsurface formations in response to ice sheet loading of multiple glacial cycles.
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|Start year development=2015
|Start year development=2015
|Does model development still take place?=Yes
|Does model development still take place?=Yes
|DevelopmentCode=Active
|DevelopmentCodeYearChecked=2020
|Model availability=As code
|Model availability=As code
|Source code availability=Through CSDMS repository
|Source code availability=Through CSDMS repository
|Program license type=Other
|Source csdms web address=https://github.com/csdms-contrib/CVFEM-Rift2D
|Program license type=GPL v3
}}
}}
{{Input - Output description
{{Input - Output description
|Input format=ASCII
|Output format=ASCII
|Pre-processing software needed?=No
|Pre-processing software needed?=No
|Post-processing software needed?=No
|Post-processing software needed?=No
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|Other visualization software=Tecplot
|Other visualization software=Tecplot
}}
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{{Process description model}}
{{Process description model
|Describe processes represented by the model=The four primary components of our multi-physics code include geomechanical, hydrologic, solute transport and heat transfer modules. The geomechanical module calculates displacement of an elastic lithosphere disturbed by an ice sheet load. Transient geomechanical deformation is represented by one-dimensional (lateral) viscous asthenosphere flow. Our geomechanical module is partially coupled to the hydrologic module by providing the rate of change in the mean normal stress. Mean normal stress change rate is included as a source term in the groundwater flow equation driving flow. Flow is also influenced by changes in the top specified hydraulic head boundary condition. We implement two-way coupling between fluid flow, solute transport and heat transfer module via density and viscosity equations of state.
 
Three additional modules in our multi-physics code calculate changes to the upper hydraulic and thermal boundary conditions or alter the hydraulic transport properties (permeability) due to hydrogeomechanical failure. These include ice sheet evolution, permafrost, and failure analysis modules. Ice sheet thickness determines both the vertical load in the geomechanical module as well as the hydraulic head boundary condition at the land surface in the hydrologic module. In this study we adopted a simple parabolic polynomial equation to represent the idealized geometry of an ice sheet’s cross section in the ice sheet evolution module. We solved for permafrost
formation at and below the land surface using a suite of one-dimensional heat transfer models. We allowed for grid growth within the permafrost module to account for changes in ice sheet thickness. A failure analysis module was used to modify permeability due to hydromechanical failure. We adopted the effective Coulomb’s Failure Stress change criterion from Ge et al.(2009) to assess regions of failure during glaciations.
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{{CSDMS staff part
{{CSDMS staff part
|OpenMI compliant=Not yet
|OpenMI compliant=No but possible
|IRF interface=Not yet
|IRF interface=No but possible
|CMT component=Not yet
|CMT component=No but possible
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== Issues ==
== Issues ==

Latest revision as of 20:18, 16 September 2020



CVFEM Rift2D


Metadata

Also known as
Model type Modular
Model part of larger framework
Note on status model
Date note status model
Incorporated models or components:
Spatial dimensions 2D
Spatial extent Continental
Model domain Hydrology, Geodynamic
One-line model description multi-physics numerical model that simulates rock deformation, fluid flow, solute transport and heat transfer in response to ice sheet loading of multiple cycles
Extended model description We have developed a hybrid numerical model at a continental scale via control volume finite element (finite volume) and regular finite element methods to evaluate the stress variation, pore pressure evolution, brine migration, solute transport and heat transfer in the subsurface formations in response to ice sheet loading of multiple glacial cycles.
Keywords:
Name Yipeng Zhang
Type of contact Model developer
Institute / Organization New Mexico Institute of Mining and Technology
Postal address 1 PO Box 2255
Postal address 2 801 Leroy Place
Town / City Socorro
Postal code 87801
State
Country United States
Email address zhangyipengjd@gmail.com
Phone 8147772015
Fax


Name Mark Person
Type of contact Project manager
Institute / Organization New Mexico Institute of Mining and Technology
Postal address 1 Dept. of Earth and Environmental Sciences
Postal address 2
Town / City Socorro
Postal code 87801
State New Mexico
Country United States
Email address mark.person@nmt.edu
Phone
Fax


Supported platforms
Windows
Other platform
Programming language

Fortran77, Matlab

Other program language
Code optimized Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 2015
Does model development still take place? Yes
If above answer is no, provide end year model development
Code development status Active
When did you indicate the 'code development status'? 2020
Model availability As code
Source code availability
(Or provide future intension) 		Through CSDMS repository
Source web address
Source csdms web address https://github.com/csdms-contrib/CVFEM-Rift2D
Program license type GPL v3
Program license type other
Memory requirements
Typical run time


Describe input parameters
Input format ASCII
Other input format
Describe output parameters
Output format ASCII
Other output format
Pre-processing software needed? No
Describe pre-processing software
Post-processing software needed? No
Describe post-processing software
Visualization software needed? Yes
If above answer is yes
Other visualization software Tecplot


Describe processes represented by the model The four primary components of our multi-physics code include geomechanical, hydrologic, solute transport and heat transfer modules. The geomechanical module calculates displacement of an elastic lithosphere disturbed by an ice sheet load. Transient geomechanical deformation is represented by one-dimensional (lateral) viscous asthenosphere flow. Our geomechanical module is partially coupled to the hydrologic module by providing the rate of change in the mean normal stress. Mean normal stress change rate is included as a source term in the groundwater flow equation driving flow. Flow is also influenced by changes in the top specified hydraulic head boundary condition. We implement two-way coupling between fluid flow, solute transport and heat transfer module via density and viscosity equations of state.

Three additional modules in our multi-physics code calculate changes to the upper hydraulic and thermal boundary conditions or alter the hydraulic transport properties (permeability) due to hydrogeomechanical failure. These include ice sheet evolution, permafrost, and failure analysis modules. Ice sheet thickness determines both the vertical load in the geomechanical module as well as the hydraulic head boundary condition at the land surface in the hydrologic module. In this study we adopted a simple parabolic polynomial equation to represent the idealized geometry of an ice sheet’s cross section in the ice sheet evolution module. We solved for permafrost formation at and below the land surface using a suite of one-dimensional heat transfer models. We allowed for grid growth within the permafrost module to account for changes in ice sheet thickness. A failure analysis module was used to modify permeability due to hydromechanical failure. We adopted the effective Coulomb’s Failure Stress change criterion from Ge et al.(2009) to assess regions of failure during glaciations.

Describe key physical parameters and equations
Describe length scale and resolution constraints
Describe time scale and resolution constraints
Describe any numerical limitations and issues


Describe available calibration data sets
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing


Do you have current or future plans for collaborating with other researchers?
Is there a manual available? No
Upload manual if available:
Model website if any
Model forum / discussion board
Comments


This part will be filled out by CSDMS staff

OpenMI compliant No but possible
BMI compliant No but possible
WMT component No but possible
PyMT component
Is this a data component
Can be coupled with:
Model info
Authors
Yipeng Zhang
Person
Source code
Model citations
Nr. of publications: 1
Total citations: 11
h-index: 1
m-quotient: 0.12
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Link to this page
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Introduction

History

References



Nr. of publications: 1
Total citations: 11
h-index: 1
m-quotient: 0.12



Featured publication(s)YearModel describedType of ReferenceCitations
Zhang, Yipeng; Person, Mark; Voller, Vaughan; Cohen, Denis; McIntosh, Jennifer; Grapenthin, Ronni; 2018. Hydromechanical Impacts of Pleistocene Glaciations on Pore Fluid Pressure Evolution, Rock Failure, and Brine Migration Within Sedimentary Basins and the Crystalline Basement. Water Resources Research, 54, 7577–7602. 10.1029/2017WR022464
(View/edit entry)		2018 CVFEM Rift2D
 Model overview 11
See more publications of CVFEM Rift2D


Issues

Help

Input Files

Output Files

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