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August 2002
1. ChemFlux release!
2. SVHeat beta release!
3. Spotlight - Geomembranes with SVFlux

SoilVision Systems Ltd.
Saskatoon, SK Canada
ph (306) 477-3324
fx (306) 955-4575


September Special!
Purchase SVFlux 2D or 3D in the month of September and receive a 50% discount on the purchase of ChemFlux! This offer will be provided to the first five customers only. Please mention this eNewsletter special when placing order.


Automatic Mesh Refinement Example!



ChemFlux release!

SoilVision Systems Ltd. is proud to announce the release of the ChemFlux contaminant transport finite element software. ChemFlux represents the current state-of-the-art in contaminant transport modeling software. Modeling of water soluble contaminant is both simple and powerful.

With features such as automatic mesh generation and refinement in both 2D and 3D as well as advanced convergence methods, ChemFlux provides fast and accurate solutions. Modeling time can be reduced by up to 80% over currently available software packages. Benchmarked solutions comparing the results to MT3D confirm the power of ChemFlux.

Read our news release here or download one of our brochures.

ChemFlux was designed to offer advances over currently available software packages in the following ways.

  • automatic mesh generation and automatic mesh refinement greatly reduces modeling time.
  • greater solution accuracy for advection-dominated solutions. (Email us for details)
  • finite element based solution allows highly irregular geometry.
  • 2D and 3D solutions available.
  • 3D methods of surfaces and layers allows input of highly complex 3D models.
  • import of water gradients from SVFlux allows modeling of contaminant in the unsaturated zone.
  • most comprehensive unsaturated soil formulation currently available.
  • benchmarked against existing software packages and published solutions.

ChemFlux is available for shipping. Email us for current prices. Educational discounts available.


SVHeat beta release!

SoilVision Systems Ltd. is proud to announce the upcoming release of the SVHeat software package. The SVHeat software package offers 2D and 3D finite element solutions to geothermal problems in saturated and unsaturated soils. SVHeat will offer the following general features

  • CAD interface
  • Steady-state or transient analysis
  • Frozen or unfrozen analysis
  • Model heat movement using an unlimited number of soil regions
  • Model heat movement in the saturated or unsaturated zones
  • Import groundwater volumetric water contents from SVFlux
  • Volumetric heat capacity represented as a constant or by the Newman equation
  • Temperature or gradient boundary conditions may be represented as constants or free-form equations
  • Input 3D problems as complex surfaces and layers

In addition to a stalwart group of features the following contributions make SVHeat a state-of-the-art package.

  • model heat transfer in unsaturated soils when coupled with SVFlux
  • improved model convergence and stability with preconditioning of the convergence matrix
  • automatic mesh refinement
  • automatically identifies critical zones of the problems and refines the mesh accordingly
  • 3D model creation

Beta Testing Program
SoilVision Systems Ltd. is currently taking applications for beta testers of the SVHeat software package. A limited number of beta testers will be provided with a FREE beta version of the SVHeat software. We are particularly looking for comparisons to existing software packages or applications to real-world problems. If you are interested in becoming a beta tester, please submit your contact information in the form provided here.


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Spotlight - Geomembranes with SVFlux

An area of seepage modeling that has been particularly challenging is the representation of geomembranes in a seepage modeling problem. The geomembrane represents a relatively thin and almost impermeable layer in typical problems. The mesh is almost impossible to create manually due to the large change in permeability over a very small spacial distance. The mesh must be altered from a relatively large element size to an extremely small element size next to the geomembrane to allow for a solution while minimizing convergence problems.

Automatic mesh generation is ideal for the solution of seepage problems involving geomembranes. As the automatic mesh refinement algorithm is based on relative error of the partial differential equation the routine will automatically sense areas of high flux differentials and refine the mesh appropriately. An example of this refinement in a typical seepage problem may be seen in the adjacent figure.

It can be seen that the mesh refinement in SVFlux refines to an extremely dense mesh. Solution of this problem without mesh generation and refinement would be impossible. With mesh refinement, however, the necessary density is achieved while using a modest amount of computer resources.



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