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idrama December 6, 2010 12:28

Navier-Stokes-equation
 
Hallo folks!

Does anybody know, if the Navier-Stokes equation also contains the represents turbulent flow?

julien.decharentenay December 6, 2010 18:23

Hi,
I believe they do, provided you have the proper mesh and time-step resolution (i.e. DNS).
For engineering problems, these resolutions can usually not be achieved hence the use of turbulence models...
Julien

akOOma December 7, 2010 01:23

As long as they are not averaged and no turbulence model is being used, they represent turbulent flow as well. However, like julien said, your mesh has to be fine enough to resolve all turbulent structures (referred to as Direct Numerical Simulation)


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