Aerodynamic effects of asymmetric vortex shedding from slender bodies

1985 ◽  
Author(s):  
L. ERICSSON ◽  
J. REDING
Keyword(s):  
Vortex Shedding ◽  
Asymmetric Vortex ◽  
Slender Bodies

scholarly journals Asymmetric vortex shedding in the wake of an abruptly expanding annular jet

2021 ◽  
Vol 62 (4) ◽  
Author(s):  
Maarten Vanierschot ◽  
Mustafa Percin ◽  
Bas W. van Oudheusden
Keyword(s):  
Vortex Shedding ◽  
Asymmetric Vortex ◽  
Annular Jet

Interaction of Oscillatory Flows with a Square Cylinder

2007 ◽  
Vol 23 (4) ◽  
pp. 445-450 ◽  
Author(s):  
M.-J. Chern ◽  
Y.-J. Lu ◽  
S.-C. Chang ◽  
I.-C. Cheng
Keyword(s):  
Vortex Shedding ◽  
Flow System ◽  
Flow Patterns ◽  
Oscillating Flow ◽  
Square Cylinder ◽  
Asymmetric Vortex ◽  
Force Coefficients ◽  
Periodic State ◽  
Highly Nonlinear ◽  
Line Force

AbstractThe behaviour of vortices induced by a single square cylinder in an oscillating flow was investigated. The flow patterns in the vicinity of square cylinders were visualized using an in-house numerical model. Meanwhile, force coefficients exerted on the square cylinder were determined numerically. In terms of various Keulegan-Carpenter (KC) numbers, it turns out that the flow patterns for an oscillating flow past a single cylinder can be divided into three modes: (i) no vortex, (ii) pairs of symmetric vortices, and (iii) asymmetric vortex shedding. Reynolds (Re) number did not affect the flow field apparently in this study. In addition, the in-line force coefficient decreases exponentially as KC increases. Spectrum analysis of in-line force coefficients for various KCs was provided. It can be found that the flow system was at a periodic state at small KC for the first two modes. Variations of the flow system from a periodic state to a highly nonlinear state in which asymmetric vortex shedding appeared were demonstrated for increasing KC. The relationship between the in-line force and KC was provided for future applications.

Recent progress on the study of asymmetric vortex flow over slender bodies

2008 ◽  
Vol 24 (5) ◽  
pp. 475-487 ◽  
Author(s):  
X. Y. Deng ◽  
W. Tian ◽  
B. F. Ma ◽  
Y. K. Wang
Keyword(s):  
Recent Progress ◽  
Vortex Flow ◽  
Asymmetric Vortex ◽  
Slender Bodies ◽  
Asymmetric Vortex Flow
Sign in / Sign up

Export Citation Format

Share Document