scholarly journals Falling motion of a circular cylinder interacting dynamically with a vortex pair in a perfect fluid

2014 ◽  
pp. 86-99
Author(s):  
S.V. Sokolov ◽  
Keyword(s):  
Circular Cylinder ◽  
Perfect Fluid ◽  
Vortex Pair

scholarly journals Interaction of streamwise vortex pair induced by counter type plasma jet with flow past a circular cylinder

2014 ◽  
Vol 9 (3) ◽  
pp. JFST0050-JFST0050 ◽  
Author(s):  
Shunsuke FUNAOKA ◽  
Shunsuke YAMADA ◽  
Seiji ICHIKAWA ◽  
Hitoshi ISHIKAWA
Keyword(s):  
Circular Cylinder ◽  
Vortex Pair ◽  
Streamwise Vortex ◽  
Plasma Jet ◽  
Flow Past

Dynamics of a Circular Cylinder and Two Point Vortices in a Perfect Fluid

2021 ◽  
Vol 26 (6) ◽  
pp. 675-691
Author(s):  
Sergey M. Ramodanov ◽  
Sergey V. Sokolov
Keyword(s):  
Circular Cylinder ◽  
Perfect Fluid ◽  
Point Vortices

scholarly journals FLOWFIELD PRODUCED BY A VORTEX PAIR APPROACHING A CIRCULAR CYLINDER

1989 ◽  
Vol 9 (Supplement) ◽  
pp. 23-26
Author(s):  
Hideo YAMADA ◽  
Atsushi ITOH ◽  
Haruo YAMABE ◽  
Toshiyuki GOTOH
Keyword(s):  
Circular Cylinder ◽  
Vortex Pair

Two-dimensional vortex motion in the cross-flow of a wing-body configuration

1995 ◽  
Vol 305 ◽  
pp. 93-109 ◽  
Author(s):  
T. W. G. De Laat ◽  
R. Coene
Keyword(s):  
Circular Cylinder ◽  
Initial Conditions ◽  
Vortex Motion ◽  
Cross Flow ◽  
Vortex Pair ◽  
The Body ◽  
Two Dimensional ◽  
Oncoming Flow ◽  
Stagnation Flow ◽  
Closed Orbits

For a two-dimensional potential flow, Föppl obtained the equilibrium positions for a symmetric vortex pair behind a circular cylinder in a uniform oncoming flow. In this article it is shown that such an equilibrium is in general possible for a vortex in a stagnation flow (e. g. in a corner). Furthermore it is found that a vortex near such an equilibrium position will rotate with a definite frequency around this equilibrium. Expressions are derived for the frequencies associated with the closed orbits of the vortices in the case of equilibrium of a vortex in a stagnation flow and for the equilibrium of the symmetric vortex pair behind a circular cylinder in oncoming flow. For the large-amplitude case the vortex trajectories are claculated using a fifth-order Runge-Kutta integration method. The analysis is then extended to the case of a simple wing-body combination in a cross-flow such as arises for a slender aircraft at an angle of attack with vortices generated by strakes or at the front part of the body. At the wint-body junctions the motions of the vortices may be periodic, quasi-periodic or the vortices may be swept away, depending on the initial conditions.

scholarly journals Steady Prandtl-Batchelor flows past a circular cylinder

2006 ◽  
Vol 48 (2) ◽  
pp. 165-177 ◽  
Author(s):  
G. C. Hocking
Keyword(s):  
Circular Cylinder ◽  
High Reynolds Number ◽  
Vortex Pair ◽  
Wake Region ◽  
Single Vortex ◽  
Outer Flow ◽  
Reynolds Number Flow ◽  
Number Flow ◽  
High Reynolds ◽  
Range Of Values

AbstractThe high Reynolds number flow past a circular cylinder with a trailing wake region is considered when the wake region is bounded and contains uniform vorticity. The formulation allows only for a single vortex pair trapped behind the cylinder, but calculates solutions over a range of values of vorticity. The separation point and length of the region are determined as outputs. It was found that using this numerical method there is an upper bound on the vorticity for which solutions can be calculated for a given arclength of the cavity. In some cases with shorter cavities, the limiting solutions coincide with the formation of a stagnation point in the outer flow at both separation from the cylinder and reattachment at the end of the cavity.

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