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Simulating MODFLOW-based reactive transport under radially symmetric flow conditions

(2013) GROUND WATER. 51(3). p.398-413
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Abstract
Radially symmetric flow and solute transport around point sources and sinks is an important specialized topic of groundwater hydraulics. Analysis of radial flow fields is routinely used to determine heads and flows in the vicinity of point sources or sinks. Increasingly, studies also consider solute transport, biogeochemical processes, and thermal changes that occur in the vicinity of point sources/sinks. Commonly, the analysis of hydraulic processes involves numerical or (semi-) analytical modeling methods. For the description of solute transport, analytical solutions are only available for the most basic transport phenomena. Solving advanced transport problems numerically is often associated with a significant computational burden. However, where axis-symmetry applies, computational cost can be decreased substantially in comparison with full three-dimensional (3D) solutions. In this study, we explore several techniques of simulating conservative and reactive transport within radial flow fields using MODFLOW as the flow simulator, based on its widespread use and ability to be coupled with multiple solute and reactive transport codes of different complexity. The selected transport simulators are MT3DMS and PHT3D. Computational efficiency and accuracy of the approaches are evaluated through comparisons with full 2D/3D model simulations, analytical solutions, and benchmark problems. We demonstrate that radial transport models are capable of accurately reproducing a wide variety of conservative and reactive transport problems provided that an adequate spatial discretization and advection scheme is selected. For the investigated test problems, the computational load was substantially reduced, with the improvement varying, depending on the complexity of the considered reaction network.
Keywords
MASS-TRANSFER, FIELD, SINGLE-WELL, MODEL, AQUIFER STORAGE, SOLUTE TRANSPORT, GROUNDWATER-FLOW, AXISYMMETRICAL FLOW, THERMAL-ENERGY STORAGE, MULTICOMPONENT TRANSPORT

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Citation

Please use this url to cite or link to this publication:

MLA
Wallis, Ilka, Henning Prommer, Vincent EA Post, et al. “Simulating MODFLOW-based Reactive Transport Under Radially Symmetric Flow Conditions.” GROUND WATER 51.3 (2013): 398–413. Print.
APA
Wallis, I., Prommer, H., Post, V. E., Vandenbohede, A., & Simmons, C. T. (2013). Simulating MODFLOW-based reactive transport under radially symmetric flow conditions. GROUND WATER, 51(3), 398–413.
Chicago author-date
Wallis, Ilka, Henning Prommer, Vincent EA Post, Alexander Vandenbohede, and Craig T Simmons. 2013. “Simulating MODFLOW-based Reactive Transport Under Radially Symmetric Flow Conditions.” Ground Water 51 (3): 398–413.
Chicago author-date (all authors)
Wallis, Ilka, Henning Prommer, Vincent EA Post, Alexander Vandenbohede, and Craig T Simmons. 2013. “Simulating MODFLOW-based Reactive Transport Under Radially Symmetric Flow Conditions.” Ground Water 51 (3): 398–413.
Vancouver
1.
Wallis I, Prommer H, Post VE, Vandenbohede A, Simmons CT. Simulating MODFLOW-based reactive transport under radially symmetric flow conditions. GROUND WATER. 2013;51(3):398–413.
IEEE
[1]
I. Wallis, H. Prommer, V. E. Post, A. Vandenbohede, and C. T. Simmons, “Simulating MODFLOW-based reactive transport under radially symmetric flow conditions,” GROUND WATER, vol. 51, no. 3, pp. 398–413, 2013.
@article{3225974,
  abstract     = {Radially symmetric flow and solute transport around point sources and sinks is an important specialized topic of groundwater hydraulics. Analysis of radial flow fields is routinely used to determine heads and flows in the vicinity of point sources or sinks. Increasingly, studies also consider solute transport, biogeochemical processes, and thermal changes that occur in the vicinity of point sources/sinks. Commonly, the analysis of hydraulic processes involves numerical or (semi-) analytical modeling methods. For the description of solute transport, analytical solutions are only available for the most basic transport phenomena. Solving advanced transport problems numerically is often associated with a significant computational burden. However, where axis-symmetry applies, computational cost can be decreased substantially in comparison with full three-dimensional (3D) solutions. In this study, we explore several techniques of simulating conservative and reactive transport within radial flow fields using MODFLOW as the flow simulator, based on its widespread use and ability to be coupled with multiple solute and reactive transport codes of different complexity. The selected transport simulators are MT3DMS and PHT3D. Computational efficiency and accuracy of the approaches are evaluated through comparisons with full 2D/3D model simulations, analytical solutions, and benchmark problems. We demonstrate that radial transport models are capable of accurately reproducing a wide variety of conservative and reactive transport problems provided that an adequate spatial discretization and advection scheme is selected. For the investigated test problems, the computational load was substantially reduced, with the improvement varying, depending on the complexity of the considered reaction network.},
  author       = {Wallis, Ilka and Prommer, Henning and Post, Vincent EA and Vandenbohede, Alexander and Simmons, Craig T},
  issn         = {0017-467X},
  journal      = {GROUND WATER},
  keywords     = {MASS-TRANSFER,FIELD,SINGLE-WELL,MODEL,AQUIFER STORAGE,SOLUTE TRANSPORT,GROUNDWATER-FLOW,AXISYMMETRICAL FLOW,THERMAL-ENERGY STORAGE,MULTICOMPONENT TRANSPORT},
  language     = {eng},
  number       = {3},
  pages        = {398--413},
  title        = {Simulating MODFLOW-based reactive transport under radially symmetric flow conditions},
  url          = {http://dx.doi.org/10.1111/j.1745-6584.2012.00978.x},
  volume       = {51},
  year         = {2013},
}

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