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Forum: Main CFD Forum

August 10, 2012, 14:52

Replies: 51

Isotropic Turbulence IC / Rogallo-procedure

Views: 11,034

Posted By Eifoehn4

With "filtering" i mean the 2/3 rule (dealising)....

With "filtering" i mean the 2/3 rule (dealising).

Do you dealise in every Runge-Kutta-Step or in each timestep?
Do you dealise the linear variables of the Navier-Stokes-Equations?

Forum: Main CFD Forum

August 10, 2012, 12:38

Replies: 51

Isotropic Turbulence IC / Rogallo-procedure

Views: 11,034

Posted By Eifoehn4

How do u choose ur timestep? Constant or with...

How do u choose ur timestep? Constant or with CFL/DFL condition?
Do u filter all terms or only the non-linear part?
Do u use the filter in every Runge-Kutta-Step or after each timestep?

In your...

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