DOI: 10.1615/TSFP3
A NUMERICAL STUDY ON VORTEX-INDUCED VIBRATION OF A CIRCULAR CYLINDER TOWER
RESUMO
A numerical simulation code is developed. to study the characteristics of the vortex-induced vibration of a circular cylinder tower. A moving grid method is employed to simulate a flow around the oscillatory object. This code has the ability to analyze fluid-structure interaction phenomena by coupling a fluid analysis code with a structure analysis code. A vibration of a circular cylinder tower which allowed the vibration in transverseto- wind direction is simulated with fluid-structure coupled analysis. As a result of the simulation, the vortex-induced vibration occurs in case of reduced wind speed Vr = 6. Moreover, another vibration occurs in case of reduced wind speed Vr = 14. These results show good agreement with the experimental results of Kitagawa et al. (1999).