Vortex-induced vibration of a flexible splitter plate attached to a square cylinder in laminar flow

2021 ◽  
Vol 101 ◽  
pp. 103206
Author(s):  
Xu Sun ◽  
C. Steve Suh ◽  
Chaochao Sun ◽  
Bo Yu
Keyword(s):  
Laminar Flow ◽  
Splitter Plate ◽  
Square Cylinder ◽  
Vortex Induced Vibration

Mitigation of aerodynamic sound for a laminar flow past a square cylinder using a pair of cowl plates

2020 ◽  
Vol 32 (7) ◽  
pp. 076108 ◽  
Author(s):  
Bikash Mahato ◽  
Naveen Ganta ◽  
Yogesh G. Bhumkar
Keyword(s):  
Laminar Flow ◽  
Square Cylinder ◽  
Aerodynamic Sound ◽  
Flow Past

The sound generated by a square cylinder with a splitter plate at low Reynolds number

2011 ◽  
Vol 330 (15) ◽  
pp. 3620-3635 ◽  
Author(s):  
Mohamed Sukri Mat Ali ◽  
Con J. Doolan ◽  
Vincent Wheatley
Keyword(s):  
Reynolds Number ◽  
Low Reynolds Number ◽  
Splitter Plate ◽  
Square Cylinder ◽  
Low Reynolds

scholarly journals Piezoelectric Wind Energy Harvesting from Self-Excited Vibration of Square Cylinder

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Junlei Wang ◽  
Sheng Wen ◽  
Xingqiang Zhao ◽  
Min Zhang ◽  
Jingyu Ran
Keyword(s):  
Wind Energy ◽  
Aerodynamic Force ◽  
Load Resistance ◽  
Open Circuit ◽  
Transverse Displacement ◽  
Square Cylinder ◽  
Force Output ◽  
Vortex Induced Vibration ◽  
Wind Speeds ◽  
Excited Vibration

Self-excited vibration of a square cylinder has been considered as an effective way in harvesting piezoelectric wind energy. In present work, both of the vortex-induced vibration and unstable galloping phenomenon process are investigated in a reduced velocity (Ur=U/ωn·D) range of4≤Ur≤20with load resistance ranging in100 Ω≤R≤1 MΩ. The vortex-induced vibration covers presynchronization, synchronization, and postsynchronization branches. An aeroelectromechanical model is given to describe the coupling of the dynamic equation of the fluid-structure interaction and the equation of Gauss law. The effects of load resistance are investigated in both the open-circuit and close-circuit system by a linear analysis, which covers the parameters of the transverse displacement, aerodynamic force, output voltage, and harvested power utilized to measure the efficiency of the system. The highest level of the transverse displacement and the maximum value of harvested power of synchronization branch during the vortex-induced vibration and galloping are obtained. The results show that the large-amplitude galloping at high wind speeds can generate energy. Additionally, energy can be harvested by utilization of the lock-in phenomenon of vortex-induced vibration under low wind speed.

scholarly journals Numerical investigation on the flow around a square cylinder with an upstream splitter plate at low Reynolds numbers

Meccanica ◽  
2020 ◽  
Vol 55 (5) ◽  
pp. 1037-1059
Author(s):  
Bo An ◽  
J. M. Bergadà ◽  
F. Mellibovsky ◽  
W. M. Sang ◽  
C. Xi
Keyword(s):  
Numerical Investigation ◽  
Reynolds Numbers ◽  
Splitter Plate ◽  
Square Cylinder ◽  
Low Reynolds Numbers ◽  
Low Reynolds

Simulation of the Laminar Flow Past a Square Cylinder by the Ψ−v formulation

2009 ◽  
Author(s):  
Jiten C. Kalita ◽  
Murli M. Gupta ◽  
Theodore E. Simos ◽  
George Psihoyios ◽  
Ch. Tsitouras
Keyword(s):  
Laminar Flow ◽  
Square Cylinder ◽  
Flow Past
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