I have seen that formula in Schlichting book but with 0.045 instead of 0.079. nIn any case, how can one derive the expressions of turbulent intensitty and length scale? I understand that your message is in order to derive a correlation, but I do not see any way to obtain I=0.16*Re^(-1/8) and l 0.007*L/C_mu^(/3/4)nThank you for your attentionn