A modular three-dimensional finite-difference ground-water flow model
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TLDR
A computer program for simulating ground-water flow in three dimensions by using a block-centered finite-difference approach and has a modular structure, which permits the addition of new packages to the program without modifying existing packages.Abstract:
A computer program for simulating ground-water flow in three dimensions is presented. This report includes detailed explanations of physical and mathematical concepts on which the model is developed. Ground-water flow within the aquifer is simulated by using a block-centered finite-difference approach. The program is written in Fortran 77 and has a modular structure, which permits the addition of new packages to the program without modifying existing packages.read more
Citations
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Journal ArticleDOI
Random-Walk Simulation of Transport in Heterogeneous Porous Media: Local Mass-Conservation Problem and Implementation Methods
TL;DR: In this article, the random walk method for simulating solute transport in porous media is typically based on the assumption that the velocity and velocity-dependent dispersion tensor vary smoothly in space.
OtherDOI
Documentation of a computer program to simulate stream-aquifer relations using a modular, finite-difference, ground-water flow model
Journal ArticleDOI
A review and numerical assessment of the random walk particle tracking method.
TL;DR: The general applicability of random walk particle tracking in comparison to the standard transport models is discussed and it is concluded that in advection-dominated problems using a high spatial discretization or requiring the performance of many model runs, RWPT represents a good alternative for modelling contaminant transport.
Journal ArticleDOI
Factors controlling riffle‐scale hyporheic exchange flows and their seasonal changes in a gaining stream: A three‐dimensional groundwater flow model
TL;DR: In this paper, a single riffle of a low-gradient gravel bed stream was modeled in three dimensions using MODFLOW, a finite difference groundwater flow model Model simulations showed that exchange flows can only occur in this lowgradient, gaining stream because of a zone of alluvial sediment around the stream that has much higher permeability than the surrounding catchment.
References
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Journal ArticleDOI
Applied Numerical Analysis. By C.F. Gerald. Pp. xii, 340. £3·60. 1970. (Addison-Wesley.)
Book
Finite Element Simulation in Surface and Subsurface Hydrology
George F. Pinder,William G. Gray +1 more
Book
Methods for the Numerical Solution of Partial Differential Equations
Von Rosenberg,U Dale +1 more
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