Effect on wake flow of abrupt alterations in ellipticity of an orbiting cylinder

Baranyi, László (2008) Effect on wake flow of abrupt alterations in ellipticity of an orbiting cylinder. In: 9th International Conference on Flow-Induced Vibrations. Institute of Termomechanics, Academy of Sciences of the Czech Republic, Prague, pp. 285-290. ISBN 80-87012-12-7


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A finite difference solution is presented for 2D laminar unsteady flow around a circular cylinder in orbital motion placed in a uniform flow in the Reynolds number domain of Re=120-180. Abrupt jumps between two state curves were found in the time-mean and root-mean-square values of the force coefficients under lock-in conditions. This study focuses upon the effect of abrupt alteration of transverse amplitude during computation. It was found that the solution tended to remain in the same state curve after amplitude alteration, inhibiting jumps between states.

Item Type: Book Section
Subjects: Q Science / természettudomány > QA Mathematics / matematika
Q Science / természettudomány > QC Physics / fizika > QC03 Heat. Thermodinamics / hőtan, termodinamika
T Technology / alkalmazott, műszaki tudományok > TJ Mechanical engineering and machinery / gépészmérnöki tudományok
Depositing User: MTMT SWORD
Date Deposited: 25 Jul 2014 08:10
Last Modified: 25 Jul 2014 08:10

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