scholarly journals The Motion of a Balanced Circular Cylinder in an Ideal Fluid Under the Action of External Periodic Force and Torque

2019 ◽  
Vol 15 (1) ◽  
pp. 41-57
Author(s):  
E.V. Vetchanin ◽  
Keyword(s):  
Circular Cylinder ◽  
Ideal Fluid ◽  
Periodic Force

scholarly journals The motion of a stream of finite depth past a body

1915 ◽  
Vol 92 (636) ◽  
pp. 107-121
Keyword(s):  
Circular Cylinder ◽  
Ideal Fluid ◽  
Finite Depth ◽  
Resultant Force ◽  
The Other ◽  
Potential Motion ◽  
The One ◽  
External Forces

When a circular cylinder moves uniformly in an ideal fluid (i.e. frictionless and incompressible) at rest at infinity, the resultant force acting on it is zero, it no external forces act. This is however, only true when the motion is the usual potential motion. Supposing that in addition to the potential stream produced by the motion of the cylinder a circulation around it be considered, the velocity of the fluid is incresased on the one side, an decreased on the other, and this produces a force acting on the cylinder perpendicular to the direction of motion.

The scattering of surface waves by two submerged cylinders

1971 ◽  
Vol 69 (1) ◽  
pp. 201-215 ◽  
Author(s):  
Jon T. Schnute
Keyword(s):  
Circular Cylinder ◽  
Surface Waves ◽  
Ideal Fluid ◽  
Periodic Surface ◽  
Reflective Property ◽  
Historical Basis ◽  
Submerged Objects ◽  
Time Periodic

1. Introduction. The historical basis for the work in this paper lies in a remarkable fact discovered by Dean in 1948. He found that time-periodic surface waves in an ideal fluid experience no reflexion when they encounter normally a fixed, submerged, right-circular cylinder. We might reasonably ask if a similar non-reflective property carries over to different geometrical configurations of submerged objects, for example, two or more cylinders. This question motivates the investigation which follows.

scholarly journals Control of the motion of a circular cylinder in an ideal fluid using a source

2020 ◽  
Vol 30 (4) ◽  
pp. 604-617
Author(s):  
E.M. Artemova ◽  
E.V. Vetchanin
Keyword(s):  
Fixed Point ◽  
Circular Cylinder ◽  
Level Set ◽  
Ideal Fluid ◽  
Equations Of Motion ◽  
Energy Integral ◽  
Integral Conditions ◽  
Unstable Fixed Point ◽  
Constant Strength ◽  
Momentum Integral

The motion of a circular cylinder in an ideal fluid in the field of a fixed source is considered. It is shown that, when the source has constant strength, the system possesses a momentum integral and an energy integral. Conditions are found under which the equations of motion reduced to the level set of the momentum integral admit an unstable fixed point. This fixed point corresponds to circular motion of the cylinder about the source. A feedback is constructed which ensures stabilization of the above-mentioned fixed point by changing the strength of the source.

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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