Bulk flow modification with horseshoe and serpentine plasma actuators

2008/12/31 by Subrata Roy, Chin-Cheng Wang · 3 citations
Engineering · #Plasma and Flow Control in Aerodynamics #Aerodynamics and Fluid Dynamics Research #Fluid Dynamics and Turbulent Flows

paper · doi:10.1088/0022-3727/42/3/032004

Abstract

Two different control devices are introduced to modify the boundary layer thickness by plasma induced velocity in the low speed region. These horseshoe and serpentine shaped actuators are surface compliant and have a significant three-dimensional influence on neighbouring flows. A numerical investigation of the quiescent and flow condition demonstrates active electrodynamic actuation of fluid in all three principal (streamwise, crosswise and surface normal) directions altering the boundary layer thickness. Based on the powering scheme of electrodes, these actuators not only induce flow attachment to the work surface but can also extract momentum from an upstream flow injecting it into the bulk fluid. Such designs could be useful for tripping the flow as well as for separation control as needed.

Citations

• Flow control with plasma synthetic jet actuators

Cited by

• Wind Tunnel Testing of Plasma Actuator with Two Mesh Electrodes to Boundary Layer Control at High Angle of Attack. [europepmc]
• Superposition of AC-DBD plasma actuator outputs for three-dimensional disturbance production in shear flows. [europepmc]
• Boundary Layer Control with a Plasma Actuator Utilizing a Large GND Mesh Electrode and Two HV Electrode Configurations. [europepmc]

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