A CFD Analysis of Wind Effects on Lifted Loads |
( Vol-6,Issue-11,November 2019 ) OPEN ACCESS |
Author(s): |
Felipe Almeida Monteiro, Roger Matsumoto Moreira |
Keywords: |
Aerodynamics, CFD, fluid-structure interaction, lifting. |
Abstract: |
This work presents a numerical investigation of the effects of wind blowing on lifted structures. The chosen case is an offshore oil & gas platform module lifted by a crane. The pendulum-like displacement of the lifted load is expected once wind blows on it, therefore a pendulum-like displacement is determined via a finite difference scheme whereas drag coefficients of the platform module are estimated through Computational Fluid Dynamics (CFD) via a finite volume method. Numerical results are compared to empirical data found in the literature and experiments carried out in a scaled model. Displacements of the lifted load are calculated for different gusts of wind and compared to standards commonly used by the oil & gas industry. It is confirmed that the recommended horizontal gap around the lifted structure is adequate for wind speeds of up to 20 m/s. For higher wind velocities, displacements become too large for a safe rigging and hook-up operation. |
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Advanced Engineering Research and Science