Abstract
Detached eddy simulation of fully developed turbulent channel flows at high Reynolds numbers with a uniform blowing and suction was carried out aiming at skin friction drag reduction. The friction Reynolds number was set to be 180, 640, 2000, 8000 and 20000. The mean velocity profiles are shifted from the blowing side to the suction side. As a result, the skin friction drag was reduced on the blowing side, while increased on the suction side. The drag reduction rate on the blowing side is found to increase with the Reynolds number and the blowing amplitude.
