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http://dx.doi.org/10.7837/kosomes.2018.24.4.430

Study on the Course Stability of a Barge in Waves  

Lee, Sangmin (Dept. of Marine Science and Production, Kunsan National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.24, no.4, 2018 , pp. 430-437 More about this Journal
Abstract
For a ship navigating in waves, added resistance, sway force and yaw moment due to waves differ from still water conditions, which affects the maneuverability of the ship. Therefore, it is important to estimate the sway force and yaw moment generated by waves. In this study, numerical simulations were carried out to calculate the hydrodynamic forces acting on a barge in still water and waves using CFD. Based on the results, the characteristics of course stability of a barge were investigated and analyzed. The hydrodynamic forces acting on the barge in waves were stronger than in still water, and it was confirmed that hydrodynamic forces become greater as wavelength becomes longer. In long wavelength regions, the (-) value of the yaw damping lever was larger than in still water. However, in short wavelength regions and when wavelength coincided with the length of the ship, values were smaller than in still water. In this region, it can be assumed that course stability improved. In other words, in long wavelength regions, the course stability of the barge was worse than in still water and short wavelength regions. Therefore, attention is required for safe navigation in long wavelength regions.
Keywords
Wave; Sway force; Yaw moment; CFD; Barge; Course stability;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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