Predicting the Structural Response Induced by Turbulent Boundary Layer in Wind Tunnel

AIAA Journal ◽  
2017 ◽  
Vol 55 (4) ◽  
pp. 1221-1229 ◽  
Author(s):  
XiaoJian Zhao ◽  
BangCheng Ai
Keyword(s):  
Boundary Layer ◽  
Wind Tunnel ◽  
Turbulent Boundary Layer ◽  
Structural Response

The random structural response due to a turbulent boundary layer excitation

2003 ◽  
Vol 6 (6) ◽  
pp. 437-450 ◽  
Author(s):  
S. De Rosa ◽  
F. Franco ◽  
G. Romano ◽  
F. Scaramuzzino
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Structural Response

Similitude laws for the structural response of flat plates under a turbulent boundary layer excitation

2019 ◽  
Vol 129 ◽  
pp. 590-613 ◽  
Author(s):  
Francesco Franco ◽  
Olivier Robin ◽  
Elena Ciappi ◽  
Sergio De Rosa ◽  
Alain Berry ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Structural Response ◽  
Flat Plates

Numerical and experimental analysis of turbulent boundary layer control with piezo-ceramic actuator

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1217-1226
Author(s):  
Dawei Li ◽  
Guijuan Li ◽  
Lin Sun ◽  
Yunfei Chen
Keyword(s):  
Boundary Layer ◽  
Wind Tunnel ◽  
Turbulent Boundary Layer ◽  
Leading Edge ◽  
Active Surface ◽  
Control Parameters ◽  
Wind Tunnel Experiments ◽  
Turbulence Length ◽  
Turbulence Length Scale ◽  
Layer Control

The effects of smart-material-based active surface perturbation (i.e. piezo-ceramic actuators) on wall shear stress and noise metric have been investigated by simulations and wind tunnel experiments. A periodic vibration through the application of piezo-ceramic actuators is imposed on the surface of a plate, and the vibration position is located on the upper part of the leading edge of the plate. Both the control results from simulations and experiments are close to each other, when the control parameters are the same. The simulations and wind tunnel experiments show that downstream skin-friction drag and noise metric can be reduced with the active control, and the reductions strongly depend on control parameters. Comparing with the near wall flow structures, the turbulent kinetic energy and characteristic turbulence length scale in the turbulent boundary layer can be controlled with the piezo-ceramic actuator.

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