2008/12/31 by Subrata Roy, Chin-Cheng Wang · 93 citations
Engineering · #Aerodynamics and Fluid Dynamics Research #Computer science #Flow (mathematics) #Fluid Dynamics and Turbulent Flows #Geology #Horseshoe (symbol) #Horseshoe crab #Materials science #Mechanics #Paleontology #Physics #Plasma #Plasma actuator #Plasma and Flow Control in Aerodynamics
paper · doi:10.1088/0022-3727/42/3/032004
published in Journal of Physics D Applied Physics 42(3), 032004 (Institute of Physics)
openalex publication_date 2008/12/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
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.