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Keywords = skeg effect

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19 pages, 9563 KB  
Article
Effect of Skeg on the Wave Drift Force and Directional Stability of a Barge Using Computational Fluid Dynamics
by Chunki Lee and Sangmin Lee
J. Mar. Sci. Eng. 2020, 8(11), 844; https://doi.org/10.3390/jmse8110844 - 27 Oct 2020
Cited by 3 | Viewed by 3938
Abstract
To accurately estimate the navigation safety of a barge in still water and waves, computational fluid dynamics (CFD) was used to calculate the hydrodynamic force on the barge and simulate the flow field to comprehensively study the effect of skeg for wave drift [...] Read more.
To accurately estimate the navigation safety of a barge in still water and waves, computational fluid dynamics (CFD) was used to calculate the hydrodynamic force on the barge and simulate the flow field to comprehensively study the effect of skeg for wave drift force and directional stability of the barge. With respect to the wave drift force, the steady surge force and steady sway force are found to decrease due to the skeg effect in both short and long wavelength regions. The overall steady yaw moment tends to be reduced by the skeg. As the drift angle increased, the sway force and yaw moment also increased. The changing trend in the sway force varied with the angular velocity, depending on the installation of the skeg, and it was noted that the yaw moment value significantly increased because of the skeg. Owing to the effect of the skeg installed on the barge, the yaw damping lever became larger, while the sway damping lever became smaller regardless of waves. It was confirmed that the directional stability was improved both in still water and head waves. Full article
(This article belongs to the Section Ocean Engineering)
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