Experimental Investigation of the Induced Airflow of Corona Discharge

Huang, Yong; Zhang, Xin; Wang, Xunnian; Wang, Wanbo; Huang, Zong-Bo; Li, Huaxing

doi:10.1088/0256-307x/30/9/094702

Cited by 1 publication

(1 citation statement)

References 12 publications

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“…Although the conventional bleeding techniques have been widely used in SWBLIs control, there are some drawbacks such as high drag and mechanical complicity. [3,4] The micro vortex generators (MVGs) with a height lower than boundary layer thickness have the merits of lower drag and physical simplicity and are considered to be a hopeful alternative for bleeding techniques. In recent years, MVGs have attracted widespread attention for their promising utility in delaying separation caused by SWBLIs.…”

Section: Introductionmentioning

confidence: 99%

Flow control of micro-ramps on supersonic forward-facing step flow

Qing-hu

Zhu

et al. 2016

Chinese Phys. B

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The effects of the micro-ramps on supersonic turbulent flow over a forward-facing step (FFS) was experimentally investigated in a supersonic low-noise wind tunnel at Mach number 3 using nano-tracer planar laser scattering (NPLS) and particle image velocimetry (PIV) techniques. High spatiotemporal resolution images and velocity fields of supersonic flow over the testing model were captured. The fine structures and their spatial evolutionary characteristics without and with the micro-ramps were revealed and compared. The large-scale structures generated by the micro-ramps can survive the downstream FFS flowfield. The micro-ramps control on the flow separation and the separation shock unsteadiness was investigated by PIV results. With the micro-ramps, the reduction in the range of the reversal flow zone in streamwise direction is 50% and the turbulence intensity is also reduced. Moreover, the reduction in the average separated region and in separation shock unsteadiness are 47% and 26%, respectively. The results indicate that the micro-ramps are effective in reducing the flow separation and the separation shock unsteadiness.

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Section: Introductionmentioning

confidence: 99%