Turbulent drag reduction by streamwise traveling waves

Armin Zare, Binh K. Lieu, Mihailo R. Jovanovic

Research output: Contribution to journalConference articlepeer-review


For a turbulent channel flow with zero-net-mass-flux surface actuation in the form of streamwise traveling waves we develop a model-based approach to design control parameters that can reduce skin-friction drag. In contrast to the traditional approach that relies on numerical simulations and experiments, we use turbulence modeling in conjunction with stochastically forced linearized equations to determine the effect of small amplitude traveling waves on the drag. Our simulation-free approach is capable of identifying drag reducing trends in traveling waves with various control parameters. High-fidelity simulations are used to verify quality of our theoretical predictions.

Original languageEnglish (US)
Article number6425850
Pages (from-to)3122-3126
Number of pages5
JournalProceedings of the IEEE Conference on Decision and Control
StatePublished - 2012
Event51st IEEE Conference on Decision and Control, CDC 2012 - Maui, HI, United States
Duration: Dec 10 2012Dec 13 2012


  • Drag reduction
  • flow control
  • stochastically forced Navier-Stokes equations
  • turbulence modeling


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