scholarly journals Falling motion of a circular cylinder interacting dynamically with a point vortex

2012 ◽  
pp. 617-628
Author(s):  
S. V. Sokolov ◽  
◽  
S. M. Ramodanov ◽  
Keyword(s):  
Circular Cylinder ◽  
Point Vortex

Falling motion of a circular cylinder interacting dynamically with a point vortex

2013 ◽  
Vol 18 (1-2) ◽  
pp. 184-193 ◽  
Author(s):  
Sergei V. Sokolov ◽  
Sergei M. Ramodanov
Keyword(s):  
Circular Cylinder ◽  
Point Vortex

Dynamics of a Circular Cylinder With a Passive Degree of Freedom Interacting With an Inviscid Fluid Containing a Point Vortex

2017 ◽  
Author(s):  
Phanindra Tallapragada ◽  
Beau Pollard ◽  
Vitaliy Fedonyuk
Keyword(s):  
Circular Cylinder ◽  
Minimal Model ◽  
Degrees Of Freedom ◽  
Point Vortex ◽  
Point Vortices ◽  
Degree Of Freedom ◽  
Inviscid Fluid ◽  
Recent Past ◽  
Internal Rotor ◽  
Mechanical Feedback

In the recent past the design of many aquatic robots has been inspired by the motion of fish. Actuated internal rotors or moving masses have been frequently used either for propulsion and or the control of such robots. However the effect of internal passive degrees of freedom or passive appendages on the motion of such robots is poorly understood. In this paper we present a minimal model that demonstrates the influence of passive degrees of freedom on an aquatic robot. The model is of a circular cylinder with a passive internal rotor, immersed in an inviscid fluid interacting with point vortices. We show through numerics that the motion of the cylinder containing a passive degree of freedom is significantly different than one without. These results show that the mechanical feedback via passive degrees of freedom could be a useful way to control the motion of aquatic robots.

Scattering of the point vortex by a falling circular cylinder

2015 ◽  
Vol 60 (11) ◽  
pp. 511-514
Author(s):  
S. V. Sokolov ◽  
I. S. Koltsov
Keyword(s):  
Circular Cylinder ◽  
Point Vortex

Low Reynolds number flow around and heat transfer from a heated circular cylinder

2010 ◽  
Vol 1 (1-2) ◽  
pp. 15-20 ◽  
Author(s):  
B. Bolló
Keyword(s):  
Reynolds Number ◽  
Circular Cylinder ◽  
Lift Coefficient ◽  
Reynolds Numbers ◽  
Low Reynolds Numbers ◽  
Reynolds Number Flow ◽  
Two Dimensional Flow ◽  
Number Flow ◽  
Low Reynolds ◽  
Increasing Temperature

Abstract The two-dimensional flow around a stationary heated circular cylinder at low Reynolds numbers of 50 < Re < 210 is investigated numerically using the FLUENT commercial software package. The dimensionless vortex shedding frequency (St) reduces with increasing temperature at a given Reynolds number. The effective temperature concept was used and St-Re data were successfully transformed to the St-Reeff curve. Comparisons include root-mean-square values of the lift coefficient and Nusselt number. The results agree well with available data in the literature.

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