... plane. In this paper, the VIM around floating circular cylinders, m * = 1.0, with very low aspect ratio, L/D = 2, as a motivation for better understanding the VIM of Spar platforms. In order to study vortex induced motions (VIM) response of a circular cylinder, numerical computations are carried out...

... Velocimetry (PIV). The difference of hydrodynamic forces on each column was discussed concerning the effect of wake interaction among columns. vortex-induced motion multi-column systems low aspect ratio wake interference hydrodynamic force particle image velocimetry ANALYSIS OF WAKE INTERACTION...

...STATE-OF-ART ON VORTEX-INDUCED MOTION: A COMPREHENSIVE SURVEY AFTER MORE THAN ONE DECADE OF EXPERIMENTAL INVESTIGATION Andre´ L. C. Fujarra TPN - Numerical Offshore Tank University of São Paulo, Brazil (afujarra@usp.br) Guilherme F. Rosetti TPN - Numerical Offshore Tank University of São Paulo...

... 19 11 2008 Despite designer’s best efforts, Vortex-Induced Motion (VIM) of spars remains a significant problem. While strakes have proven highly effective at suppressing riser VIM, all three straked classical spars in the Gulf of Mexico continue to experience occasional VIM events...