Academic Journal
FracKfinder: A MATLAB Toolbox for Computing 3‐D Hydraulic Conductivity Tensors for Fractured Porous Media
| العنوان: | FracKfinder: A MATLAB Toolbox for Computing 3‐D Hydraulic Conductivity Tensors for Fractured Porous Media |
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| المؤلفون: | Young, Nathan, Reber, Jacqueline, Simpkins, William |
| المساهمون: | Geological and Atmospheric Sciences |
| المصدر: | archive/lib.dr.iastate.edu/ge_at_pubs/258/2018_Reber_FrackfinderToolboxManuscript.pdf|||Fri Jan 14 22:59:32 UTC 2022 ; 10.1111/gwat.12837 |
| سنة النشر: | 2018 |
| المجموعة: | Digital Repository @ Iowa State University |
| مصطلحات موضوعية: | Earth Sciences, Geology, Hydrology, Hydraulic conductivity tensors, fracture upscaling, fractured porous media, discrete fracture network modeling |
| الوصف: | Fractures in porous media have been documented extensively. However, they are often omitted from groundwater flow and mass transport models due to a lack of data on fracture hydraulic properties and the computational burden of simulating fractures explicitly in large model domains. We present a MATLAB toolbox, FracKfinder, that automates HydroGeoSphere (HGS), a variably-saturated, control volume finite-element model, to simulate an ensemble of discrete fracture network (DFN) flow experiments on a single cubic model mesh containing a stochastically-generated fracture network. Because DFN simulations in HGS can simulate flow in both a porous media and a fracture domain, this toolbox computes tensors for both the matrix and fractures of a porous medium. Each model in the ensemble represents a different orientation of the hydraulic gradient, thus minimizing the likelihood that a single hydraulic gradient orientation will dominate the tensor computation. Linear regression on matrices containing the computed 3-D hydraulic conductivity (K) values from each rotation of the hydraulic gradient is used to compute the K tensors. This approach shows that the hydraulic behavior of fracture networks can be simulated where fracture hydraulic data are limited. Simulation of a bromide tracer experiment using K tensors computed with FracKfinder in HydroGeoSphere demonstrates good agreement with a previous large-column, laboratory study. The toolbox provides a potential pathway to upscale groundwater flow and mass transport processes in fractured media to larger scales. ; This is the peer reviewed version of the following article: Young, Nathan L., Jacqueline E. Reber, and William W. Simpkins. "FracKfinder: A MATLAB Toolbox for Computing 3‐D Hydraulic Conductivity Tensors for Fractured Porous Media." Groundwater (2018), which has been published in final form at doi: 10.1111/gwat.12837 . This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | archive/lib.dr.iastate.edu/ge_at_pubs/258/; 1268; ge_at_pubs/258; https://dr.lib.iastate.edu/handle/20.500.12876/38201 |
| الاتاحة: | https://dr.lib.iastate.edu/handle/20.500.12876/38201 https://hdl.handle.net/20.500.12876/38201 |
| رقم الانضمام: | edsbas.90CB26AF |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |