Analysis on slamming pressure of sandglass-type floating body based on two-step method
In order to explore the characteristics of the sandglass-type FPSO,two-step method is used to study the num-bers and pressure of slamming of floating body in typical wave environment.Motion response of the sandglass-type FPSO in waves is computed based on potential wave theory,and vertical velocity of a 2D cross section during water-entry is handled with polynomial fitting method.Slamming pressure on the section is numerically simulated with computational fluid dynam-ic(CFD)method.The simulation results show that the sandglass-type float with excellent hydrodynamic performance has higher average times of numbers of slamming and effective velocity of water entry along the cross section nearer to the wa-ter line surface.The maximum slamming pressure area is at both ends of the floating body side on the sandglass-type FPSO.The flatter the bottom shape or the larger the radius of curvature,the larger the peak of slamming pressure in the two-dimen-sional profile.
万方数据
维普
