中国物理B ›› 2007, Vol. 16 ›› Issue (4): 1077-1083.doi: 10.1088/1009-1963/16/4/036
陈志华, 范宝春, 周本谋, 李鸿志
Chen Zhi-Hua(陈志华)†, Fan Bao-Chun(范宝春), Zhou Ben-Mou(周本谋), and Li Hong-Zhi(李鸿志)
摘要: In this paper both numerical and experimental investigations have been carried out to suppress the vortex-induced vibration (VIV) of a circular cylinder in an electrically low-conducting fluid. The electromagnetic forces (Lorentz forces) in the azimuthal direction were generated through the mounted electrodes and magnets locally on the surface of the cylinder, which have been proved having an accelerating effect to the fluid on the surface of the cylinder. Results of computations are presented for synchronous vibration phenomenon of a cylinder at Re=200, which are in good agreement with previous computational results. With the Lorentz forces loaded, the VIV of the cylinder has been suppressed successfully. Experimental results have also shown the same tendency and are in reasonable agreement with the numerical results.
中图分类号: (Vibrations and mechanical waves)