SoilVision Systems Ltd.

- 2D/3D Freeze /Thaw Modeling Software



SVHeat is designed for use by geotechnical / geoenvironmental engineers, geological engineers, and soil scientists. The software is able to calculate geothermal gradients and the movement of freezing fronts in saturated and unsaturated soils. Saturation levels may be imported from SVFlu . SVHeat allows you to analyze steady-state or transient thermal conduction and convection models. User defined soil properties define the latent heat released or absorbed during the ice-water phase change.

  • Fully Integrated 1D / 2D / 3D Geotechnical Suite - performs conductive or convective analysis of problems and coupling of thermal, hydraulic and airflow (THA) processes are possible.
  • Automatic mesh generation and mesh refinement
  • Model both conductive and convective heat flux, in frozen or unfrozen conditions
  • Easy to use - quickly design models based on an intuitive CAD user interface and logical feature layout allowing creation and completion of models in hours or days .. not weeks or months!
  • Climatic interface SVFlux / SVHeat allows entry of detailed climatic data. Implementation of the rigorous Fredlund-Wilson-Penman climatic interface allows calculation of actual evaporation at the ground surface
  • Snow - modeling of the insulating effects of snow is possible with advanced boundary conditions
  • Continuous Innovation - Quick addition of features for our customers. New versions are generated every two - four weeks!
  • World Class support - highly dedicated team with tracking and fast response to all raised issues - typically within 24 - 48 hours.
  • Model customization through a powerful math scripting interface*

  • Classroom Edition (01/2012)
  • New option to calculate ksat when using SVFlux-SVHeat coupled models (10/2011)
  • New fluid viscosity properties added to SVFlux, SVHeat (10/2011)
  • User can now enter data fitting parameters for the Tice and Anderson SFCC method (07/2011)
  • Enhanced climate boundary conditions for snow cover (04/2011)
  • Additional SVHeat graphs in the back end (01/2011)
  • Johansen-Lu et al thermal conductivity estimation method (12/2010)
  • Devries approach now includes ice effects for frozen soils (12/2010)
  • Additional graphs added to material properties dialogs (11/2010)
  • New features common to all SVOffice™ 2009 products click here to go to the SVOffice™ feature page
  • Additional features are listed below

  • Full three-way coupling of SVAirflow™, SVHeat™, and SVFlux™ processes (03/2010)
  • Well / Tunnel head boundary conditions available for SVHeat™, SVAirflow™, and Chemflux™ (10/2009)
  • Tice and Anderson fit of unfrozen water content (01/2010)
  • Multi-Linear estimation of unfrozen water content (01/2010)
  • Planar Geometry (11/2009)
  • Climatic analysis in the unsaturated / vadose zone is available by coupling SVHeat with SVFlux™, or by importing pore-water pressures from SVFlux
  • Multiple types of analysis available including steady-state and transient, with both saturated and unsaturated material models. Create models in 1D, 2D, 3D, plan, or axisymmetric views
  • Fully automatic mesh generation: mesh generation may be limited by a maximum number of nodes or by a maximum specified error.

    View examples of three-dimensional meshing in action
  • Fully automatic mesh refinement

    Mesh refinement is based on the relative error of the governing equation and therefore automatically locates critical zones. Mesh refinement may be specified to follow any particular variable in the problem. In a transient analysis a different mesh is generated for each time step.

    Read more about adaptive grid refinement in research published by Mansell, 2002
  • Finite element analysis by the Galerkin method - the solver uses advanced features such as preconditioning of the convergence matrix as well as staging and automatic mesh refinement to achieve solutions with greater stability than any other software currently available
  • Handling of conductive and convective heat fluxes
  • Full coupling with SVAirflow™
  • Frozen or unfrozen analysis in saturated or unsaturated soils
  • Volumetric heat capacity represented by a constant or the Newman equation
  • Customizable solutions through a modifiable governing partial differential equation
  • Input temperature, flux, or climate boundary conditions as constants or free-form equations
  • Initial conditions may be imported from a previous analysis; use any variable from a previous analysis as an initial condition for the next analysis
  • Anisotropic analysis at any angle in two or three dimensions
  • Solver runs on Red Hat Linux or Windows, with support for hyper-threading and multiple processors

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