Downloading SVFlux 2.3.1.3 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Photo & Graphics Tools, more precisely 3D Design.
This software is an intellectual property of SoilVision. Msaccess.exe is the frequent file name to indicate the SVFlux installer. The most popular version among the program users is 2.3. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.
From the developer:
SVFlux™ is designed to model seepage and groundwater in soils. It is a 1D, 2D and 3D finite-element program for engineering soil mechanics computations. It is the most powerful and stable finite element groundwater modeling software currently available. Our CAD-based front end and automated solver allow you to spend time solving your problem, not designing your mesh.
You may want to check out more software, such as SVOffice 2009, which might be related to SVFlux.