Abstract 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.
Received: 24 November 2005
Revised: 23 July 2006
Accepted manuscript online:
Fund: Project supported by the Scientific Research
and Development Foundation of Nanjing University of Science and
Technology, China (Grant No~XKF05070) and Scientific Research
Foundation for the Returned Overseas
Chinese Scholars, State Education Ministry, Ch
Cite this article:
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) Open loop control of vortex-induced vibration of a circular cylinder 2007 Chinese Physics 16 1077
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