Description and verification of a novel flow and transport model for silicate-gel emplacement

Walther, Marc; Solpuker, Utku; Böttcher, Norbert; Kolditz, Olaf; Liedl, Rudolf; Schwartz, Franklin W.

doi:10.1016/j.jconhyd.2013.10.007

Cited by 5 publications

(5 citation statements)

References 39 publications

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“…The coupled model is also able to evaluate surface water and groundwater stor-age changes under different meteorological forcing conditions, which allows the comprehensive evaluation of hydrologic response to climate changes (e.g., global warming). Additionally, OGS demonstrates its capability in addressing thermo-hydro-mechanical-chemical (THMC) coupling processes in large-scale hydrologic cycles (not reflected in this study), which is significant for a wide range of real-world applications, including nutrient circulation, saltwater intrusion, drought, and heavy metal transport (Kalbacher et al, 2012;Selle et al, 2013;Walther et al, 2014Walther et al, , 2017.…”

Section: Discussionmentioning

confidence: 99%

“…OGS has been successfully applied in different fields, such as water resources management, hydrology, geothermal energy, energy storage, CO 2 storage, and waste disposal (Kolditz et al, 2012;Shao et al, 2013;Gräbe et al, 2013;Wang et al, 2017). In the field of hydrology-hydrogeology, OGS has been applied to regional groundwater flow and transport (Sun et al, 2011;Selle et al, 2013), contaminant hydrology (Beyer et al, 2006;Walther et al, 2014), reactive transport (Shao et al, 2009;He et al, 2015), and seawater intrusion (Walther et al, 2012), among others.…”

Section: Opengeosys (Ogs)mentioning

confidence: 99%

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Improved regional-scale groundwater representation by the coupling of the mesoscale Hydrologic Model (mHM v5.7) to the groundwater model OpenGeoSys (OGS)

et al. 2018

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Abstract. Most large-scale hydrologic models fall short in reproducing groundwater head dynamics and simulating transport process due to their oversimplified representation of groundwater flow. In this study, we aim to extend the applicability of the mesoscale Hydrologic Model (mHM v5.7) to subsurface hydrology by coupling it with the porous media simulator OpenGeoSys (OGS). The two models are one-way coupled through model interfaces GIS2FEM and RIV2FEM, by which the grid-based fluxes of groundwater recharge and the river–groundwater exchange generated by mHM are converted to fixed-flux boundary conditions of the groundwater model OGS. Specifically, the grid-based vertical reservoirs in mHM are completely preserved for the estimation of land-surface fluxes, while OGS acts as a plug-in to the original mHM modeling framework for groundwater flow and transport modeling. The applicability of the coupled model (mHM–OGS v1.0) is evaluated by a case study in the central European mesoscale river basin – Nägelstedt. Different time steps, i.e., daily in mHM and monthly in OGS, are used to account for fast surface flow and slow groundwater flow. Model calibration is conducted following a two-step procedure using discharge for mHM and long-term mean of groundwater head measurements for OGS. Based on the model summary statistics, namely the Nash–Sutcliffe model efficiency (NSE), the mean absolute error (MAE), and the interquartile range error (QRE), the coupled model is able to satisfactorily represent the dynamics of discharge and groundwater heads at several locations across the study basin. Our exemplary calculations show that the one-way coupled model can take advantage of the spatially explicit modeling capabilities of surface and groundwater hydrologic models and provide an adequate representation of the spatiotemporal behaviors of groundwater storage and heads, thus making it a valuable tool for addressing water resources and management problems.

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Section: Discussionmentioning

confidence: 99%

Section: Opengeosys (Ogs)mentioning

confidence: 99%

Improved regional-scale groundwater representation by the coupling of the mesoscale Hydrologic Model (mHM v5.7) to the groundwater model OpenGeoSys (OGS)

et al. 2018

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“…OpenGeoSys (Kolditz et al, 2012a) is a well-established, open-source, platform-independent simulation package for coupled THM/C processes (thermal, hydraulic, mechanical and chemical processes). The numerical simulation model utilizes the finite element method (FEM) and has been applied in various instances in the environmental sciences (Sun et al, 2011;Walther et al, 2012bWalther et al, , 2013Nagel et al, 2013;Maxwell et al, 2013;Kolditz et al, 2015).…”

Section: Modeling Tools and Site Descriptionmentioning

confidence: 99%

GO2OGS 1.0: a versatile workflow to integrate complex geological information with fault data into numerical simulation models

et al. 2015

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Abstract. We offer a versatile workflow to convert geological models built with the Paradigm ™ GOCAD © (Geological Object Computer Aided Design) software into the opensource VTU (Visualization Toolkit unstructured grid) format for usage in numerical simulation models. Tackling relevant scientific questions or engineering tasks often involves multidisciplinary approaches. Conversion workflows are needed as a way of communication between the diverse tools of the various disciplines. Our approach offers an open-source, platform-independent, robust, and comprehensible method that is potentially useful for a multitude of environmental studies. With two application examples in the Thuringian Syncline, we show how a heterogeneous geological GO-CAD model including multiple layers and faults can be used for numerical groundwater flow modeling, in our case employing the OpenGeoSys open-source numerical toolbox for groundwater flow simulations. The presented workflow offers the chance to incorporate increasingly detailed data, utilizing the growing availability of computational power to simulate numerical models.

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“…We use ParaView (Ayachit, 2015) to visualize and evaluate the particular converting steps. ParaView is a widely used open-source visualization toolbox, also in hydrogeological sciences (Bilke et al, 2014;Helbig et al, 2014;Walther et al, 2014). ParaView uses the VTK framework to apply various filters in a pipeline combining a large variety of visualization algorithms.…”

Section: Data Structures and Visualizationmentioning

confidence: 99%

GO2OGS: a versatile workflow to integrate complex geological information with fault data into numerical simulation models

Fischer¹,

Walther²,

Sattler³

et al. 2015

Preprint

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Abstract. We offer a versatile workflow to convert geological models built with the software Paradigm™ GOCAD© into the open-source VTU format for the usage in numerical simulation models. Tackling relevant scientific questions or engineering tasks often involves multidisciplinary approaches. Conversion workflows are needed as a way of communication between the diverse tools of the various disciplines. Our approach offers an open-source, platform independent, robust, and comprehensible method that is potentially useful for a multitude of similar environmental studies. With two application examples in the Thuringian Syncline, we show how a heterogeneous geological GOCAD model including multiple layers and faults can be used for numerical groundwater flow modelling. The presented workflow offers the chance to incorporate increasingly detailed data, utilizing growing availability of computational power to simulate numerical models.

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Description and verification of a novel flow and transport model for silicate-gel emplacement

Cited by 5 publications

References 39 publications

Improved regional-scale groundwater representation by the coupling of the mesoscale Hydrologic Model (mHM v5.7) to the groundwater model OpenGeoSys (OGS)

Improved regional-scale groundwater representation by the coupling of the mesoscale Hydrologic Model (mHM v5.7) to the groundwater model OpenGeoSys (OGS)

GO2OGS 1.0: a versatile workflow to integrate complex geological information with fault data into numerical simulation models

GO2OGS: a versatile workflow to integrate complex geological information with fault data into numerical simulation models

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