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Turbulent boundary-layer control with plasma actuators
DOI:10.1098/rsta.2010.0362.png)
Abstract
En 中文
This paper reviews turbulent boundary-layer control strategies for skin-friction reduction of aerodynamic bodies. The focus is placed on the drag-reduction mechanisms by two flow control techniques-spanwise oscillation and spanwise travelling wave, which were demonstrated to give up to 45 per cent skin-friction reductions. We show that these techniques can be implemented by dielectric-barrier discharge plasma actuators, which are electric devices that do not require any moving parts or complicated ducting. The experimental results show different modifications to the near-wall structures depending on the control technique.
Keywords:
boundary layers
flow control
turbulence
drag reduction
plasma actuators
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