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Numerical simulation of vortex induced vibration of rectangular cylinder with aspect ratio 4 |
Liu Zhi-wen; Zhou Shuai; Chen Zheng-qing |
Wind Engineering Research Center, Hunan University, Changsha 410082, China |
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Abstract Numerical simulations of Vortex-induced vibration (VIV) of rectangular cylinder with aspect ratio 4 were conducted with the dynamic mesh in present paper. The two-dimensional Reynolds-averaged Navier-Stokes (RANS) code equipped with the SST turbulence model was applied to solve the N-S equations of incompressible viscous fluid. The equation of structural vibration was solved by Newmark- integration method which was embedded in Fluent with user defined functions (UDFs). The results show that the lock-in region and VIV amplitudes of the rectangular cylinder are agree well with the wind tunnel experimental results which have been published. And it is feasible to conduct the numerical simulation of VIV of bluff section with separation and reattachment phenomenon with the present method.
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Received: 12 June 2010
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Corresponding Authors:
Liu Zhi-wen
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