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CFdesign upfront CFD software



CFdesign® turns a standard CAD workstation or PC into a fully interactive flow bench, thermal test rig, and wind tunnel. Native CAD models become parametric, zero-cost prototypes revealing critical engineering information not available from physical tests.

No specialist skills are required. Easy to learn, remember, and share - it is ideally suited for multi-tasking engineers working in a CAD environment.

The BRNI philosophy is that geometry changes must be made in the CAD system and the CFD tool must recognise and adapt to design changes without loss of data. This logical approach is very uncommon in the CFD world because typical geometry made in the CAD system is too complicated for traditional CFD meshing tools. In the structural analysis world, this is less of an issue since the solvers are predominantly based on the finite element (FE) method. For CFdesign too, finite elements provide geometric flexibility and robustness essential to widespread use, and are a major success factor for the product.

The FE method has two major advantages over the older finite volume approach used in traditional CFD solutions

  • FE can accept elements of different shapes and geometry
  • The mathematical basis of FE produces a better solution for a given mesh and is more tolerant of distorted elements. This really helps when building geometrically complex models

Not "low-end"

A recent proliferation of CFD applications marketed as design-level and CAD-integrated are classified as "low end". Such tools offer sub-sets of flow and thermal simulation capabilities found in traditional CFD packages but fall short of being a complete solution. Stripping out essential simulation capabilities to make the software easier to use is not the BRNI way. Solving tough problems that involve laminar, turbulent and even transient flows are the mechanical design engineer's remit. They are routinely confronted with complex heat transfer challenges that include radiation, natural and forced convention, joule heating and the like. They need more not less analytical power. Packaging full-spectrum analysis capabilities in an easy-to-learn, easy-to-use, CAD-integrated environment is far from low-end technology. Simplicity is the ultimate sophistication.

CFdesign web site

 

 
   
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