The CFD (Computational Fluent Dynamics) method was used to calculate the added mass and the viscous damping of the Spar platform considering the semi-closed moon pool in this paper. The three-dimensional models of the platform with water inside the semi-closed moon pool were established by the VOF (Volume of Fluid) method. The UDF (User Defined Function) was adopted to oscillate the platform. The added mass and the damping coefficients were calculated under different KC (Keulegan-Carpenter) number and flow velocity for different opening ratio of the moon pool. The viscous damping and natural period of the platform heaving were obtained by calculating the platform motion in the static water. The influences of water inside the moon pool on the Spar platform motion were analyzed.

Volume Subject Area:
CFD and VIV
Topics:
Damping, Spar platforms, Water, Computational fluid dynamics, Dynamics (Mechanics), Flow (Dynamics), Fluids, Three-dimensional models
This content is only available via PDF.
Copyright © 2015 by ASME
You do not currently have access to this content.