Atmospheric-pressure pulsed plasma actuators for flow control: shock wave and vortex characteristics

2019 ◽  
Vol 28 (6) ◽  
pp. 064001 ◽  
Author(s):  
Cheng Zhang ◽  
Bangdou Huang ◽  
Zhenbing Luo ◽  
Xueke Che ◽  
Ping Yan ◽  
...  
Keyword(s):  
Shock Wave ◽  
Flow Control ◽  
Atmospheric Pressure ◽  
Plasma Actuators ◽  
Pulsed Plasma ◽  
Control Shock

Numerical investigation of hypersonic flow with repetitive-pulsed plasma actuators

2017 ◽  
Vol 232 (9) ◽  
pp. 1715-1724
Author(s):  
Chin-Cheng Wang ◽  
Li-Chung Hsu
Keyword(s):  
Circular Cylinder ◽  
Flow Control ◽  
Hypersonic Flow ◽  
High Speed ◽  
Numerical Study ◽  
Pressure Ratio ◽  
Plasma Actuators ◽  
Circular Cylinders ◽  
Pulsed Plasma ◽  
Pulsed Discharges

Repetitive-pulsed plasma actuators have become the key enabler for flights in the hypersonic flow control. A numerical study focuses on the effect of the repetitive-pulsed plasma actuators at Mach 6. The geometric effects of circular, square, and triangular cylinders as well as a sphere on the aerodynamic performance are considered in the present study. For flow over the circular cylinder and sphere, shock control by repetitive-pulsed discharges is investigated, respectively. The baseline results are successfully validated with the theoretical and published numerical values for flow past a circular cylinder at Mach 6. Without flow control, results show that the shapes of the triangular cylinder and sphere have much smaller high-pressure regions compared to that of the square and circular cylinders. With repetitive-pulsed plasma, the time-average drag reduction has been reduced by a maximum of 0.8% and the stagnation pressure ratio is reduced by 2.1% for Mach 6 flow over a circular cylinder. Thus, this research shows a great benefit of repetitive-pulsed discharges to the state-of-the-art in high-speed flight design.

Flow-control-induced vibrations for power generation using pulsed plasma actuators

2012 ◽  
Vol 34 ◽  
pp. 170-189 ◽  
Author(s):  
David Greenblatt ◽  
Alexander Treizer ◽  
Alexander Eidelman ◽  
Hanns Mueller-Vahl
Keyword(s):  
Power Generation ◽  
Flow Control ◽  
Plasma Actuators ◽  
Pulsed Plasma

Ex situ electrochemical sodiation/desodiation observation of Co3O4anchored carbon nanotubes: a high performance sodium-ion battery anode produced by pulsed plasma in a liquid

Nanoscale ◽  
2015 ◽  
Vol 7 (30) ◽  
pp. 13088-13095 ◽  
Author(s):  
Md Mokhlesur Rahman ◽  
Irin Sultana ◽  
Zhiqiang Chen ◽  
Mateti Srikanth ◽  
Lu Hua Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Atmospheric Pressure ◽  
High Performance ◽  
Sodium Ion ◽  
Ex Situ ◽  
Sodium Ion Battery ◽  
Pulsed Plasma ◽  
Plasma Method ◽  
Battery Application ◽  
Battery Anode

A new liquid plasma method is used to fabricate a Co3O4/CNT nanocomposite anode using a nanosecond pulse atmospheric pressure for sodium-ion battery application.

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