The excellence in fluid dynamic studies with performances at the greatest level for transient and free-surface flows, with free moving objects, with motion fully coupled with the fluid and collisions.
It is a real CFD software that solves for the motion of the fluid the complete set of Navier-Stokes equations without any simplification, with additional models to simulate additional physical behaviors.

This software is entirely produced by Flow Science, society born from Los Alamos Laboratories and whose founder is Dr. Hirt, inventor of the VOF numerical method, the best algorithm for fluid free surface tracking. With the years the traditional VOF has evolved in the incomparable TruVOF, absolutely the best for accuracy and performances.

The code is totally "general purpose", and it has a great variety of physical models, in order to get the solution of any problem, from hydraulics to mems. Every special model can be activated simultaneously to any other, running true multi-disciplinary problems in an unique calculation. Born for aerospace industry (as sloshing analysis) is today used for many other application fields: hydraulics/environmental, consumer products, inkjet printers, foundry, coating, maritime, till the latest modern applications such as biomedical and MEMS.

The biggest unique characteristics are the already mentioned TruVOF, the cartesian mesh (that gives the user the ability to setup a simulation very quickly) and the FAVOR (a special algorithm for object surface treatment). These three ingredients have permitted to develop effectively new algorithms, first of all and absolutely unique in this field is the ability to have free moving objects, with collisions and frictions, without the necessity to change or modify the mesh. Now, in a fluid flow, it is possible to have complex geometries that moves dynamically with the fluid, with free or coupled motion (up to the all six degrees of freedom), with a user definable elastic coefficient and frictions with walls.
From version 10.0 is also possible to fully simulate the interaction fluid-structure, with an automatic creation of a finite-element mesh in the body and the computation of stresses and deformations.

Everything this with years of experience and validations, and with these features natively included in the user interface. If you need some advanced feature, you can add your model in FLOW-3D thanks to the possibility to do customization on a partially-open source code.
On more, with the software is included a very powerful post-processor, that permits the user to do analysis on simulations without feeling the need of any specific software.