The holy grail of CFD as computational fluid mechanics is:

- Turbulence modeling.
- Flow separation.

DFS as Direct Finite Element Simulation offers answers to these problems:

- Turbulence captured as best possible computational solution to the Euler equations.
- Flow separation described as 3d rotational or parallel slip separation.

To see details of this picture ponder the above picture of the dynamics of a tornado with air sucked horizontally along the land surface towards a low pressure center being redirected into a raising swirling air thus separating from the surface. Then read this post and think!

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