Nika has developed a number of Key Technologies to allow
their users to concentrate on their problems and not be distracted by
the inner workings of the program yet still maintain the highest level
of mathematical rigidity and physical significance. These technologies
- Direct CAD to CFD Conception
This technology enables the user to perform the fluid flow analysis
directly on the native solid body of the model. The user defines inlet
and outlet boundaries, by means of lids for internal flow (e.g. flow
through pipes), and the program automatically detects the fluid region.
- Rectangular Adaptive Mesh
This allows the mesh to automatically adapt to the geometrical and/or
physical requirements of the model. Additionally, the user has the ability
to change these parameters manually if so desired.
- Modified Wall Functions
One of EFD's strengths, and one that enables solutions to be found quickly,
is the technique of applying empirical data to the region of partial
cells, these being cells that are bound on once side by solid and the
other by fluid, to approximate the boundary layer remarkably reliably.
- Laminar-Transitional-Turbulent Modeling
With this technology, there is no need to specify the flow characteristics
of the fluid in an application. The flow regimes are dealt with in the
same flow model.
- Automatic Convergence Control
Nika claims very robust convergence behavior of the solver to a solution.
- Design Variants Analysis
Nika refers to this as a "what-if" analysis.
- Engineering User Interface
The GUI is easy to learn, presented for the engineer and is similar
in feel to the MS Office Suite.