Turbulent skin-friction drag reduction via spanwise forcing at high
Reynolds number
Turbulent skin-friction drag reduction via spanwise forcing at high
Reynolds number
We address the Reynolds-number dependence of the turbulent skin-friction drag reduction induced by streamwise-travelling waves of spanwise wall oscillations. The study relies on direct numerical simulations of drag-reduced flows in a plane open channel at friction Reynolds numbers in the range $1000 \le Re_\tau \le 6000$, which is the widest …