Modeling of transverse self-oscillations of a circular cylinder in an incompressible fluid flow in a plane channel with circulation |
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Authors: | A A Kharlamov |
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Institution: | 1.Institute of Hydrodynamics,Academy of Sciences of the Czech Republic,Prague,Czech Republic |
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Abstract: | Experimentally observed self-oscillations of a cylinder in a plane channel whose width is slightly greater than the cylinder
diameter under the impact of the incoming fluid flow are modeled. Within the model of a nonseparated potential flow around
the cylinder, the coefficients of added mass of the cylinder are calculated with the help of the generalized method of images.
When the cylinder touches the channel wall, the circulation sign changes, and its value is determined by the boundary element
method and the no-slip condition for the fluid at the contact point. The Joukowski force and the drag force proportional to
the square of velocity are taken into account in the equations of motion of cylinder. |
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Keywords: | |
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