Active control of sublayer streak bursting in artificially excited turbulent spots in a water channel was experimentally performed. Flow-aligned surface heating elements were used as activators to input controlled velocity perturbations into the near-wall region in response to the presence of a detected low-speed streak. It was found that when active control was applied, significant reductions in both turbulence intensity and Reynolds stress production were measured.
|Original language||English (US)|
|State||Published - Jan 1 1985|
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