Advantages of SVAirFlow 3D

The SVAirFlow automated soil vapor extraction modeling software package is not designed to be just another SVE package. It is specifically designed to bring soil vapor extraction modeling to "the next level". As such, it offers the following significant advantages over currently available SVE modeling software packages:

• Automatic mesh generation - Fully automatic mesh generation is provided based on problem geometry. The automatic mesh generation allows for simulation of extremely complex problems drawn manually or imported from AutoCAD.
• Automatic mesh refinement - SVAirFlow is the only soil vapor extraction software package worldwide to provide automatic mesh refinement based on any problem variable. For example, mesh refinement can be set to respond to stress in the x or y direction, strains in the x or y direction, etc.
• Increased Solution Stability - The automatic mesh refinement present in SVAirFlow causes the mesh to be refined around critical zones of the solution mesh. There are two benefits of this refinement. (1) The user is able to determine the location of critical zones visually, and, (2) the ability of SVAirFlow to converge around these critical zones is better than conventional soil vapor extraction software. The solver used by SVAirFlow uses the Galerkin Integral method with a non-linear Newton-Raphson iteration technique with three types of pre-conditioning of the convergence matrix. The pre-conditioning of the convergence matrix significantly improves convergence stability over other software solutions.
• Model Creation Method - SVAirFlow offers four specific advantages over other software solutions in the creation of models. 3D wireframes of grids and regions allow previewing of created model. The following four features allow the creation of extremely complex models quickly and efficiently:
• 1) Varying Grid Density - Models are created in SVAirFlow3D by stacking grids. Each grid may be of a different density. Grid densities of up to 12,000 points have been successfully implemented in SVAirFlow3D models. Grids may be imported from Surfer files.

• 2) Varying Grid Size - It is not a requirement in SVAirFlow3D that grids be the same size.

• 3) Pinching out of Grids - Pinching out of grids can be handled easily in SVAirFlow 3D. Overlapping grids can also be handled by specifying which grid is the dominant grid. Grids can also be modified to allow a minimum thickness between grids.

• 4) Highly irregular problem definition - Regions are specified as cookie-cutter shapes extruded between surfaces. Regions may be any irregular shape and may be extruded between one or several surfaces.

• Problem Customization - Models set up by the front end are written in a scripting language (similar to MathCAD ™) prior to being solved by the solver. The models may be modified and/or prior to solution by end-users familiar with the mathematical language. Coupling of models may be performed as well as additional functions or problem variables defined.
• Metric and Imperial Units - All developed models may be built and viewed using metric or imperial units.
• Internal Database Of Model Soil Properties - An internal database of soil properties (required for soil vapor extraction modeling) is maintained by the SVAirFlow software (separate from the SoilVision database). The user therefore has a choice with each new model to either enter new soil properties or pull soil properties from a previous problem.
• Flexible Boundary Conditions - Free form equations may be input as boundary conditions.
• Database Driven - All created models are stored in a database. This allows the user to develop a database of models. Models are organized by project and model type for future reference. All previous models can be used as templates in the creation of future models. The database format is also ideal for multi-user environments. The database file may be installed on a server and multiple users may "plug in" to the same file. All model creation is therefore centralized and available to the entire company.
• Price advantage - SVAirFlow is designed as high-end soil vapor extraction modeling software while not breaking your budget! Click here for current pricing!