scholarly journals Turbulent boundary layer separation control using plasma actuator at Reynolds number 2000000

2016 ◽  
Vol 29 (5) ◽  
pp. 1237-1246 ◽  
Author(s):  
Xin Zhang ◽  
Yong Huang ◽  
Xunnian Wang ◽  
Wanbo Wang ◽  
Kun Tang ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Reynolds Number ◽  
Turbulent Boundary Layer ◽  
Boundary Layer Separation ◽  
Plasma Actuator ◽  
Separation Control ◽  
Layer Separation

Turbulent Boundary Layer Separation Control by Using DBD Plasma Actuators: Part II—Numerical Model Validation and Parametric Study

2010 ◽  
Author(s):  
Xiaofei Xu ◽  
Huu Duc Vo ◽  
Njuki Mureithi ◽  
Xue Feng Zhang
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Parametric Study ◽  
Boundary Layer Separation ◽  
Plasma Actuator ◽  
Plasma Actuators ◽  
Low Flow ◽  
Dbd Plasma ◽  
Layer Separation ◽  
Flow Velocities

Following an experimental investigation into suppression of a 2-D turbulent boundary layer separation with dielectric barrier discharge (DBD) plasma actuators, the present work investigates the concept numerically. The purpose is to develop and validate a simulation tool that captures the flow physics and carry out a parametric study of the concept at flow regimes beyond the current flow control capability of plasma actuators of conventional strength. First, a plasma actuator model is integrated into the commercial computational fluid dynamics (CFD) code ANSYS CFX to simulate the effects of plasma actuation. This computational tool is validated through comparison of results with the experimental results for pulsed actuation in quiescent air and for the control of a turbulent boundary layer separation at low flow velocities. It is shown that CFX with an integrated plasma model can capture the main experimentally observed effects of DBD actuators on turbulent boundary layer separation. Subsequently, this numerical approach is used, with increased plasma actuator strength, to study the influence of different actuation parameters (e.g., actuation location, direction and frequency) on suppression of turbulent boundary layer separation at higher flow velocities.

Turbulent boundary layer separation control and loss evaluation of low profile vortex generators

2011 ◽  
Vol 35 (8) ◽  
pp. 1505-1513 ◽  
Author(s):  
Davide Lengani ◽  
Daniele Simoni ◽  
Marina Ubaldi ◽  
Pietro Zunino ◽  
Francesco Bertini
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Boundary Layer Separation ◽  
Vortex Generators ◽  
Separation Control ◽  
Layer Separation ◽  
Low Profile

Experimental study of laminar and turbulent boundary layer separation control of shark skin

2016 ◽  
Vol 12 (1) ◽  
pp. 016009 ◽  
Author(s):  
Farhana Afroz ◽  
Amy Lang ◽  
Maria Laura Habegger ◽  
Philip Motta ◽  
Robert Hueter
Keyword(s):  
Boundary Layer ◽  
Experimental Study ◽  
Turbulent Boundary Layer ◽  
Boundary Layer Separation ◽  
Separation Control ◽  
Shark Skin ◽  
Layer Separation
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