Validation Study of Numerical Simulation of Discharge Plasma on DBD Plasma Actuator

2011 ◽  
Author(s):  
Hiroyuki Nishida ◽  
Takashi Abe
Keyword(s):  
Numerical Simulation ◽  
Validation Study ◽  
Discharge Plasma ◽  
Plasma Actuator ◽  
Dbd Plasma

Optical Observation of Discharge Plasma Structure in DBD Plasma Actuator

2007 ◽  
Author(s):  
Yuji Takizawa ◽  
Atsushi Matsuda ◽  
Kousuke Kikuchi ◽  
Akihiro Sasoh ◽  
Takashi Abe
Keyword(s):  
Discharge Plasma ◽  
Plasma Actuator ◽  
Optical Observation ◽  
Plasma Structure ◽  
Dbd Plasma

Numerical Simulation of Flow Induced by Multiple DBD Plasma Actuators

2016 ◽  
Author(s):  
Hua Shan ◽  
Shawn Aram ◽  
Yu-Tai Lee
Keyword(s):  
Numerical Simulation ◽  
Boundary Layer ◽  
Flow Separation ◽  
Plasma Actuator ◽  
Plasma Actuators ◽  
Separation Control ◽  
Simulation Tool ◽  
Streamwise Direction ◽  
Dbd Plasma ◽  
Flow Separation Control

Active flow separation control using dielectric barrier discharge (DBD) plasma actuators oriented in the spanwise direction has been successfully investigated by the authors using an integrated numerical simulation tool that couples the unsteady Reynolds averaged Navier-Stokes (URANS) or large eddy simulation (LES) solver for incompressible flows with the DBD electro-hydrodynamic (EHD) body force model. Although many experimental and numerical investigations have indicated that the spanwise-oriented DBD plasma actuator is an effective flow control method, the application is difficult to extend from model-scale to full-scale problems, partly due to the required high amplitude and high bandwidth excitation. Also, the flow control mechanism associated with a spanwise-oriented DBD actuator is mainly direct momentum injection, therefore, the effectiveness of actuation is sensitive to the location of the DBD actuator relative to the location of flow separation. On the other hand, a few experimental studies have shown promising results using the DBD Vortex Generator (DBD-VG) consisting of multiple plasma DBD actuators oriented in the streamwise direction. By generating streamwise vortices extending a long distance downstream, the DBD-VGs enhance the mixing of the inner and outer layers of turbulent boundary layer flows. As a result, the boundary layer can better withstand an adverse pressure gradient. When applied to flow separation control, the effectiveness of the DBD-VGs should be less sensitive to location of flow separation. The present work extends the capability of the integrated numerical simulation tool from a single spanwise-oriented DBD plasma actuator to multiple DBD plasma actuators oriented in any direction, including the streamwise direction. As a demonstration of the new capability in the DBD-URANS coupled solver, numerical simulations of flow induced by a DBD-VG actuator with an array of exposed electrodes in a quiescent environment, as well as in a turbulent boundary layer over a flat plate, are carried out. The numerical simulation successfully reproduced the longitudinal vortices embedded in the boundary layer.

scholarly journals Numerical simulation and experimental verification of gas streams feeding a gliding discharge plasma reactor

2013 ◽  
Vol 61 (2) ◽  
pp. 24321
Author(s):  
Teresa Opalińska ◽  
Małgorzata Majdak ◽  
Janusz Piechna ◽  
Witold Selerowicz ◽  
Bartłomiej Wnek
Keyword(s):  
Numerical Simulation ◽  
Experimental Verification ◽  
Discharge Plasma ◽  
Plasma Reactor ◽  
Gas Streams ◽  
Gliding Discharge
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