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MODFLOW procedure to simulate axisymmetric flow in radially heterogeneous and layered aquifer systems

Andy Louwyck (UGent) , Alexander Vandenbohede (UGent) , Mark Bakker and Luc Lebbe (UGent)
(2014) HYDROGEOLOGY JOURNAL. 22(5). p.1217-1226
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Abstract
A procedure is outlined to simulate axisymmetric groundwater flow in radially heterogeneous and layered aquifer systems using the unmodified version of MODFLOW. The procedure is straightforward, as it only requires correction of some of the input parameters. In contrast to other MODFLOW procedures to simulate axisymmetric flow, no restrictions are imposed on the type of flow, the discretization of radial distance, or the parameter values. Hence, the method can deal with both confined and unconfined flow, wellbore storage, and axisymmetric aquifer inhomogeneities including effects of finite-thickness skin and gravel pack. Several test cases are presented, which compare the calculated results with existing analytical solutions, the analytic element solver TTim, and the axisymmetric, finite-difference model MAxSym. It is concluded that the MODFLOW procedure is capable of simulating accurately axisymmetric flow in radially heterogeneous multi-aquifer systems.
Keywords
Radially heterogeneous multi-aquifer systems, Groundwater flow, Numerical modeling, Finite-thickness skin, Wellbore storage, WELL, THICKNESS, TRANSPORT, TESTS, BOISE, SKIN

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Chicago
Louwyck, Andy, Alexander Vandenbohede, Mark Bakker, and Luc Lebbe. 2014. “MODFLOW Procedure to Simulate Axisymmetric Flow in Radially Heterogeneous and Layered Aquifer Systems.” Hydrogeology Journal 22 (5): 1217–1226.
APA
Louwyck, A., Vandenbohede, A., Bakker, M., & Lebbe, L. (2014). MODFLOW procedure to simulate axisymmetric flow in radially heterogeneous and layered aquifer systems. HYDROGEOLOGY JOURNAL, 22(5), 1217–1226.
Vancouver
1.
Louwyck A, Vandenbohede A, Bakker M, Lebbe L. MODFLOW procedure to simulate axisymmetric flow in radially heterogeneous and layered aquifer systems. HYDROGEOLOGY JOURNAL. 2014;22(5):1217–26.
MLA
Louwyck, Andy, Alexander Vandenbohede, Mark Bakker, et al. “MODFLOW Procedure to Simulate Axisymmetric Flow in Radially Heterogeneous and Layered Aquifer Systems.” HYDROGEOLOGY JOURNAL 22.5 (2014): 1217–1226. Print.
@article{8203507,
  abstract     = {A procedure is outlined to simulate axisymmetric groundwater flow in radially heterogeneous and layered aquifer systems using the unmodified version of MODFLOW. The procedure is straightforward, as it only requires correction of some of the input parameters. In contrast to other MODFLOW procedures to simulate axisymmetric flow, no restrictions are imposed on the type of flow, the discretization of radial distance, or the parameter values. Hence, the method can deal with both confined and unconfined flow, wellbore storage, and axisymmetric aquifer inhomogeneities including effects of finite-thickness skin and gravel pack. Several test cases are presented, which compare the calculated results with existing analytical solutions, the analytic element solver TTim, and the axisymmetric, finite-difference model MAxSym. It is concluded that the MODFLOW procedure is capable of simulating accurately axisymmetric flow in radially heterogeneous multi-aquifer systems.},
  author       = {Louwyck, Andy and Vandenbohede, Alexander and Bakker, Mark and Lebbe, Luc},
  issn         = {1431-2174},
  journal      = {HYDROGEOLOGY JOURNAL},
  language     = {eng},
  number       = {5},
  pages        = {1217--1226},
  title        = {MODFLOW procedure to simulate axisymmetric flow in radially heterogeneous and layered aquifer systems},
  url          = {http://dx.doi.org/10.1007/s10040-014-1150-0},
  volume       = {22},
  year         = {2014},
}

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