Modeling tools - Revision history

Klmos: /* TOUGH */

2019-07-03T12:50:48Z

‎TOUGH

Klmos: /* Modeling tools */

2019-07-03T12:47:17Z

‎Modeling tools

Klmos: /* Geologic modeling with GeoScene3D */

2019-07-03T12:46:45Z

‎Geologic modeling with GeoScene3D

Klmos: /* Useful helpers */

2018-02-09T16:58:05Z

‎Useful helpers

Klmos: /* Modeling tools */

2018-02-07T19:19:45Z

‎Modeling tools

Klmos: /* COMSOL Multiphysics */

2018-02-07T19:18:36Z

‎COMSOL Multiphysics

Klmos at 12:39, 6 February 2018

2018-02-06T12:39:22Z

Klmos: /* Capture zone delineation of extraction wells (Matlab model) */

2018-01-29T19:03:59Z

‎Capture zone delineation of extraction wells (Matlab model)

Klmos: /* Modeling tools */

2018-01-29T18:58:29Z

‎Modeling tools

Klmos at 06:42, 10 August 2017

2017-08-10T06:42:01Z

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 === TOUGH ===
-* [http://esd1.lbl.gov/research/projects/tough/ TOUGH]
+* [https://tough.lbl.gov/ TOUGH]
 === DuMuX ===

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 * [http://fracman.golder.com/ FRACMAN]
-[[ Comparison of capabilities ]] - ''will come soon''
+<!-- [[ Comparison of capabilities ]] - ''will come soon'' -->
 == Useful helpers ==

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 It provides predefined physics-based interfaces (e.g. a module for subsurface flow) and allows equation-based modeling, where arbitrary partial differential equations can be solved.
 Different physics can be coupled, e.g., a flow model can be coupled with a transport model.
-The toolbox provides tools for geometry and mesh generation, a user interface for the simulation setup, several solvers, and visualization and post-processing tools.
+The toolbox provides tools for geometry and mesh generation, a user interface for the simulation setup, several direct and indirectsolvers, and visualization and post-processing tools.
-It uses the finite element method and includes higher-order discretization schemes.
+It uses the finite-element method and includes higher-order discretization schemes.
 For the modeling of flow and transport in porous media, there are predefined physics interface available.
@@ Line 109: / Line 109: @@
 === Geologic modeling with GeoScene3D ===
 [http://www.geoscene3d.com/ GeoScene3D] is a tool to import and work with borehole data to create a geologic model.
-It is possible to directly import data from the Danish borehole database [http://www.geus.dk/DK/data-maps/jupiter/Sider/data-dk.aspx Jupiter] and to interpolate borehole data, for example to obtain the surface of the top of the limestone.
+It is possible to directly import data from the Danish borehole database [https://www.geus.dk/produkter-ydelser-og-faciliteter/data-og-kort/national-boringsdatabase-jupiter/ Jupiter] and to interpolate borehole data, for example to obtain the surface of the top of the limestone.
 <references />

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 Some of them will be described in the following.
-[[File:CaptureZones_Akacievej.png |thumb| Example of a capture zone calculation for a field site in Hedehusene. The blue lines are calculated streamlines and the green lines are simulated isopotentials.]]
+[[File:CaptureZones_Akacievej.png |thumb| Example of capture zone calculations for the wells around the Akacievej site in Hedehusene. The blue lines are calculated streamlines and the green lines are simulated isopotentials.]]
 === Capture zone delineation of extraction wells (Matlab model) ===
-Contaminated sites often pose a threat to drinking water suppliers.
+Contaminated sites often pose a threat to drinking water wells.
-Christ and Goltz have developed a semi-analytical algorithm that allows estimating the capture zones of extraction wells.
+Christ and Goltz <ref name="christ2002">[http://dx.doi.org/10.1016/S0022-1694(02)00026-4 Christ and Goltz (2002)], J. Hydrology, p. 224-244 </ref> have developed a semi-analytical algorithm that allows estimating the capture zones of extraction wells.
 Following parameters are required to set up and run the model:
 * Estimate of the bulk hydraulic conductivity
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 * Pumping rates of the wells in the study area
-The model computes streamlines and isopotential lines for the given parameters.
+The model computes streamlines and isopotential lines for the specified set of parameters.
 When a background map of the study area is specified, the streamlines and isopotential lines can be directly plotted on the map, as shown in the example below.
-The semi-analytical solution is described in the paper by Christ and Goltz, J. Hydrology, 2002, p. 224-244.
+A Matlab model was developed based on the solution from Christ and Goltz (2002) <ref name="christ2002" />.
-[http://dx.doi.org/10.1016/S0022-1694(02)00026-4].
+An example file for the larger Akacievej area can be seen here:
 * [[ Matlab model Christ and Goltz | Matlab model for capture zone calculation]]

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 The following list shows some selected modeling tools that can be used for the simulation of fracture flow and transport.
-Their capabilities with respect to modeling flow and transport in fractured media are compared in the chapter [[ Comparison of capabilities ]] (will come soon).
+<!-- Their capabilities with respect to modeling flow and transport in fractured media are compared in the chapter [[ Comparison of capabilities ]] (will come soon). -->
 === COMSOL Multiphysics ===

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 === Capture zone delineation of extraction wells (Matlab model) ===
-Contaminated sites can often pose a threat to water suppliers.
+Contaminated sites often pose a threat to drinking water suppliers.
 Christ and Goltz have developed a semi-analytical algorithm that allows estimating the capture zones of extraction wells.
-A simple Matlab model was developed based on the semi-analytical solution from Christ and Goltz (2002)<ref name="christ2002">[http://dx.doi.org/10.1016/S0022-1694(02)00026-4 Christ and Goltz (2002)], J. Hydrology, p. 224-244 </ref>, which requires only a few parameters to estimate the capture zone of production wells with a given groundwater flow.
+A simple Matlab model was developed based on the solution from Christ and Goltz (2002)<ref name="christ2002">[http://dx.doi.org/10.1016/S0022-1694(02)00026-4 Christ and Goltz (2002)], J. Hydrology, p. 224-244 </ref>, which requires only a few parameters to estimate the capture zone of production wells with a given groundwater flow.
-This can be very useful to get a quick estimate, if a contaminant is likely to flow towards a drinking water well, for example.
+This tool can be very useful to get a quick estimate of well capture zones to check, for example, if a contaminant is likely to flow towards a drinking water well.
 ==== Required parameters ====
 Following parameters are required to set up and run the model:
-* Estimate of the hydraulic conductivity
+* Estimate of the bulk hydraulic conductivity
 * Average hydraulic gradient of the natural groundwater flow
 * Reference head at one point in the domain
-* Direction of natural groundwater flow
+* Direction of the natural groundwater flow
 * Aquifer thickness
 * Location of wells
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 The model computes streamlines and isopotential lines for the given parameters.
-When a background map of the study area is specified, the streamlines and isopotential lines are directly plotted on the map, as shown in the example below.
+When a background map of the study area is specified, the streamlines and isopotential lines can be directly plotted on the map, as shown in the example below.
 The semi-analytical solution is described in the paper by Christ and Goltz, J. Hydrology, 2002, p. 224-244.
 [http://dx.doi.org/10.1016/S0022-1694(02)00026-4].
-A Matlab example file can be seen here:
+A Matlab example file for the larger Akacievej area can be seen here:
 * [[ Matlab model Christ and Goltz | Matlab model for capture zone calculation]]

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 It provides predefined physics-based interfaces (e.g. a module for subsurface flow) and allows equation-based modeling, where arbitrary partial differential equations can be solved.
 Different physics can be coupled, e.g., a flow model can be coupled with a transport model.
-The toolbox provides tools for geometry and mesh generation, a user interface for the simulation setup, several different solvers, and visualization and post-processing tools.
+The toolbox provides tools for geometry and mesh generation, a user interface for the simulation setup, several solvers, and visualization and post-processing tools.
 It uses the finite element method and includes higher-order discretization schemes.
-For the modeling of flow in fractures, there is a predefined physics interface available.
+For the modeling of flow and transport in fractures, there is a predefined physics interface available.
-However, there is no fracture transport interface yet, but it is possible to manually include the fracture transport physics.
+The flow and transport equations are implemented as partial differential equations and the fracture flow and transport can be added using a feature called "Weak contributions".
 Here is an instruction file which describes how to setup a 2-dimensional flow and transport model including fracture flow and transport in COMSOL Multiphysics.
 * [[:File:WeakFormulation_toolbox.pdf |Instructions for setting up a discrete-fracture model in COMSOL Multiphysics (PDF) - DRAFT!]]
 === FEFlow ===
-[http://www.mikepoweredbydhi.com/products/feflow FEFlow] is a simulator focused on groundwater flow and transport of contaminants, groundwater age and heat in porous media.
+[http://www.mikepoweredbydhi.com/products/feflow FEFlow] is a finite-element simulator focused on groundwater flow and transport of contaminants, groundwater age and heat in porous media.
 It comprises mesh generators, solvers and post-processing tools for visualization and result evaluation.
 It facilitates the computation of porous medium flow and transport in 2D and 3D aquifers, which can be confined, semi-confined or unconfined.
-Unsaturated flow can also be modeled with an approach that uses the Richards model.
+Unsaturated flow can also be modeled with based on the Richards model.
 (Hydro-)geologic data can be easily imported and discrete fractures can be included.

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 * Overview of modeling tools and software
 * Useful little tools and helpers
 |}