Considering the superstructure of a 20000TEU ultralarge container ship as the research object
a wind tunnel model for measuring wind load and PIV flow field is tested to optimize the wind resistance of a container ship with multiple huge superstructures. On the basis of the obtained wind resistance and flow field interference
the longitudinal spacing and local configuration of the main building are optimized by numerical simulation
and the optimization results are verified by the wind tunnel test. The results show that the longitudinal spacing of the main building is the main factor affecting the wind resistance of the container ship and the aerodynamic disturbance of the flow field around the deck. By reasonably adjusting the longitudinal spacing of the superstructure and simultaneously rounding the edges and corners of the building
a layout with enhanced wind resistance performance can be obtained. As verified by the wind tunnel test
the optimized scheme reduces the wind resistance by 47.19 % compared with the initial scheme. It also has a large optimization space that can serve as a reference for the general layout design of ultralarge container ships.
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