Large EDDY simulation of single offshore riser oscillating normal uniform flow: comparison between two dimensional and three dimensional results

摘要

Demand for reliability of risers and riser systems has also increased despite the ever increasing water depths and environmental harshness that the production units are exposed to. At present water depths where there are plans for the use of risers are upto 1000m. In order to optimise riser, riser system and riser bundle design it is importnat to be able to predict hydro dynamic loads with a high confidence level. With the present decrease in computer hardware costs and increas ein computing capacity, Computational Fluid Dynamics (CFD) is starting to become a tool that can be usefully employed for the designs of these vital structures.