Model of Flow Separation

tornado

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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