I see now what you mean, also the cd plot is close to the 3e5 graph rather than to the 3e6 graph.
I take the equations provided by the page CFD-online.com (Turbulence free-stream boundary conditions -- CFD-Wiki, the free CFD reference) where K= 3/2(U*I)^2 and W=Cmu^(-0.25)*k^0.5/L, where cmu is 0.09 and I take the turbulen intensity as a 2% (Turbulence intensity -- CFD-Wiki, the free CFD reference)
This page said that for medium turbulent case (low Re) the intensity should be between 1% and 5%, but although I have a high Re I found in CFD forums that a good value for the intensity should be 2%
So did you know which could be the problem with the Re or coulr be the values of K and omega?
Regards
Alfonso