NUMERICAL SIMULATION OF FLOW-INDUCED VIBRATION ON TWO CIRCULAR CYLINDERS IN TANDEM ARRANGEMENT
Author(s): DENG Jian, REN An-lu, CHEN Wen-qu
Pages: 660-666
Year: 2005 Issue: 6
Journal: JOURNAL OF HYDRODYNAMICS
Keyword: flow by two cylinders; flow-induced vibration; high-order compact scheme; dynamic response;
Abstract: Flow-induced vibration of two circular cylinders in tandem arrangement elastically mounted with a mass-spring-damping system was studied by solving the primitive variable Navier-Stokes equations incorporating the Arbitrary Lagrangian-Eulerian (ALE) method.The convection term and dissipation term were discretized using the third-order upwind compact scheme and the fourth-order central compact scheme, respectively.The typical spacing between the cylinders is 4 diameters, which is close to the critical value.The dynamic response of the vibrations on two cylinders with two-degree-of-freedom motion is different from that of an isolated cylinder, and also different from that of a cylinder vibrating in the wake of a fixed upstream one.Different flow patterns were found in the wake, and proved to be relevant to the discontinuities observed in the response of the oscillatory cylinders.
Pages: 660-666
Year: 2005 Issue: 6
Journal: JOURNAL OF HYDRODYNAMICS
Keyword: flow by two cylinders; flow-induced vibration; high-order compact scheme; dynamic response;
Abstract: Flow-induced vibration of two circular cylinders in tandem arrangement elastically mounted with a mass-spring-damping system was studied by solving the primitive variable Navier-Stokes equations incorporating the Arbitrary Lagrangian-Eulerian (ALE) method.The convection term and dissipation term were discretized using the third-order upwind compact scheme and the fourth-order central compact scheme, respectively.The typical spacing between the cylinders is 4 diameters, which is close to the critical value.The dynamic response of the vibrations on two cylinders with two-degree-of-freedom motion is different from that of an isolated cylinder, and also different from that of a cylinder vibrating in the wake of a fixed upstream one.Different flow patterns were found in the wake, and proved to be relevant to the discontinuities observed in the response of the oscillatory cylinders.
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