Modeling of transverse self-oscillations of a circular cylinder in an incompressible fluid flow in a plane channel with circulation

0374777 - ÚH 2013 RIV RU eng J - Článek v odborném periodiku
Kharlamov, Alexander A.
Modeling of transverse self-oscillations of a circular cylinder in an incompressible fluid flow in a plane channel with circulation.
Journal of Applied Mechanics and Technical Physics. Roč. 53, č. 1 (2012), s. 38-42. ISSN 0021-8944. E-ISSN 1573-8620
Výzkumný záměr: CEZ:AV0Z20600510
Klíčová slova: cylinder * channel * flow * self-oscillations * added mass * circulation
Kód oboru RIV: BK - Mechanika tekutin
Impakt faktor: 0.253, rok: 2012

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.
Trvalý link: http://hdl.handle.net/11104/0207613