Soilvision Systems Ltd. Announces The Release Of ChemFlux -
Saturated/Unsaturated Automated 2D/3D Finite Element Contaminant Transport
Modeling
Saskatoon, SK, August 2002
www.chemflux.com
Recent years have brought the global community an increased awareness of the
environmental impact of our development. The impact of contamination on our
groundwater supply has been at the forefront of this interest. This impact
has led to advances in the theory of how contaminants move through the soil.
The development of this theory has resulted in the implementation of
software packages utilizing the finite difference or finite element method
to provide solutions to the contaminant transport equations. These software
packages have become accepted by the consulting community as an acceptable
way of estimating contaminant movement. Their acceptance has come at a
price, however. Currently available software is often difficult to use and
plagued with convergence problems.
ChemFlux is designed to bring the modeling of contaminant transport to a new
level by offering the following advantages.
2D and 3D Model Solutions
Commercial software packages often offer only a 2D or a 3D solution.
SoilVision recognizes that difficult sites require varying modeling
conditions and, as such, ChemFlux offers the ability to model 2D and 3D
scenarios. Geometry is imported from the SVFlux software negating the need
to duplicate model design.
Fully Automatic Mesh Generation and Refinement
Our modeling experience with existing software packages has found us
spending the bulk of our time drawing the intricate series of elements that
make up the mesh. Convergence problems would the n often be encountered and
require further, time consuming, mesh refinement.
ChemFlux offers time-savings at up to 80% by implementing automatic mesh
generation and refinement in both 2D and 3D models. Error limits and other
solution indicators are provided to facilitate real-time analysis of the
problem solution. This automation allows the modeler to focus on the
solution of the problem and not on the finite element process
Simple CAD User Interface
The ChemFlux user interface is designed with your productivity in mind.
Drawing features similar to AutoCAD*.
Increased Convergence Accuracy/Stability
The contaminant transport equation is historically difficult to solve. In
particular, the “advection only” problem creates numerical instability. The
ChemFlux solver minimizes these problems and is, at the minimum, able to
duplicate the results of the best software currently available. Results have
been benchmarked against other common software packages including MT3D* may
be seen in our Verification Manual.
Solution to Advection, Diffusion, Adsorption, and Radioactive and Biological
Decay
ChemFlux is effective for modeling the movement of a single phase, soluble
contaminant. Movement as governed by advection, diffusion, adsorption, or
decay may be modeled.
Modeling of advection is accomplished through the importation of gradients
from a steady-state or transient-state analysis performed by the SVFlux
software package. Constant gradients in the x, y, or z direction may also be
input.
The diffusion of contaminant in a soil may be modeled as governed by the
dispersion coefficient (alpha) and/or the diffusion coefficient as
determined by Fetter, 1981. The Linear, Langmuir, Freundlich, or a
customized model may all be used to model the adsorption behavior of a soil.
Likewise, radioactive or biological decay may be represented.
Summary
The ChemFlux software offers the next generation in the modeling of
contaminant transport. Its powerful automatic mesh generation and refinement
offers significant time savings over current software packages. Benchmarked
against leading software packages, ChemFlux offers stable solutions you can
trust.
System requirements
ChemFlux runs under Windows 95/98, NT 4.0, Me, and 2000. The recommended
hardware configuration is 128M bytes of RAM, 30 M bytes hard disk space and
16-bit color graphics.
About the company
SoilVision Systems Ltd. is located at
2109 McKinnon Ave S.
Saskatoon, SK, Canada
S7J 1N3
Phone: 306-477-3324
Fax: 306-955-4575
Web sites: www.soilvision.com, www.grainsize.com, www.soildatabase.com ,
www.svflux.com , www.svheat.com
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