A CFD Analysis of Wind Effects on Lifted LoadsJournal: International Journal of Advanced Engineering Research and Science (Vol.6, No. 11)
Publication Date: 2019-11-09
Authors : Felipe Almeida Monteiro Roger Matsumoto Moreira;
Page : 365-371
Keywords : Aerodynamics; CFD; fluid-structure interaction; lifting.;
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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