The starting vortex in quiescent air induced by dielectric-barrier-discharge plasma
Richard D. Whalley,Kwing-So Choi +1 more
TLDR
In this article, the flow field around an asymmetric dielectric-barrier discharge (DBD) plasma actuator in quiescent air is studied using particle image velocimetry (PIV) and smoke-flow visualization.Abstract:
The flow field around an asymmetric dielectric-barrier-discharge (DBD) plasma actuator in quiescent air is studied using particle image velocimetry (PIV) and smoke-flow visualization. On initiation of DBD plasma a starting vortex is created, which rolls up to form a coherent structure. The starting vortex becomes self-similar when the maximum velocity induced by the DBD plasma actuator reaches a steady state. Here, the plasma jet momentum increases linearly with time, suggesting that the DBD plasma actuator entrains and accelerates the surrounding fluid with a constant force. The wall-parallel and wall-normal distances of the vortex core are observed to scale with as it travels at to the wall. The velocity of the starting vortex is found to scale with , while the circulation induced by the plasma actuator scales with .read more
Citations
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Journal ArticleDOI
Recent developments in DBD plasma flow control
TL;DR: A review of the recent trend of plasma actuator design and to summarise aerodynamic control techniques can be found in this article, where the starting vortex that leads to formation of a plasma wall jet is discussed.
Journal ArticleDOI
On the formation of streamwise vortices by plasma vortex generators
Timothy Jukes,Kwing-So Choi +1 more
TL;DR: In this article, the authors used particle image velocimetry to understand the vortex-formation mechanisms of dielectric-barrier-discharge actuators in the laminar boundary layer.
Journal ArticleDOI
Application of flow control strategy of blowing, synthetic and plasma jet actuators in vertical axis wind turbines
TL;DR: In this paper, the upward-parabola blowing jet flow control strategy for VAWTs is proposed to suppress the flow separation in advance, which can significantly enhance the aerodynamic performance by using significantly low energy consumption.
References
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Journal ArticleDOI
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Journal ArticleDOI
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C. L. Enloe,Thomas McLaughlin,Robert D. VanDyken,K. D. Kachner,Eric J. Jumper,Thomas Corke,Martiqua Post,O. M. Haddad +7 more
TL;DR: The single dielectric barrier discharge plasma, a plasma sustainable at atmospheric pressure, has shown considerable promise as a flow control device operating at modest (tens of watts) power levels as mentioned in this paper.
Journal ArticleDOI
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