Journal
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume 369, Issue 1940, Pages 1443-1458Publisher
ROYAL SOC
DOI: 10.1098/rsta.2010.0362
Keywords
boundary layers; flow control; turbulence; drag reduction; plasma actuators
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Funding
- EU
- Engineering and Physical Sciences Research Council
- BAE Systems
- EPSRC [EP/G025150/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G025150/1] Funding Source: researchfish
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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.
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