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http://dx.doi.org/10.7837/kosomes.2012.18.6.597

Characteristics of Resistance Performance on Tugboat in Still Water and Waves  

Park, Jong-Su (Dept. of Marine Science and Production, Kunsan National University)
Lee, Sang-Min (Dept. of Marine Science and Production, Kunsan National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.18, no.6, 2012 , pp. 597-603 More about this Journal
Abstract
It is necessary to accurately evaluate the resistance performance and estimate the towing power of a tugboat for safety towing operation at actual seas. In this study, we have carried out the model tests firstly to investigate the resistance performance and flow characteristics around the tugboat in still water. The experiments are performed in infinite depth in circulation tank using 1/33.75 scaled model from 5kts to 10kts(designed speed 7kts) considering the effect of adverse and favorable current. Then the numerical calculations are executed to analyze the response amplitude operator and added resistance on tugboat due to the waves. The results obtained by the present computation are compared with the those acquired from the experiments in still water. As a result, it is noted that the added resistance become larger at head sea and higher speed conditions. We can also observe that the EHP increase 70 percent in comparison with those in still water.
Keywords
Tugboat; Resistance performance; Model test; Added resistance; Numerical calculation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Ahn, B. K. and S. M. Lee(2010), Study on the Added Resistance of Barge in Waves, Journal of Navigation and Port Research, Vol. 34, No. 10, pp. 741-746.   과학기술학회마을   DOI   ScienceOn
2 Hong, D. C., S. Y. Hong and E. C. Kim(2001), On the Calculation of Added Resistance of a Ship by Maruo's Formula, Proceeding of the Spring Conference of the Korean Society of Ocean Engineers, pp. 202-207.
3 Ichinose, Y., M. Tsujimoto, N. Sogihara, K. Shibata and K. Takagi(2010), Estimation of Added Resistance in Waves in a Ballasted Condition, Journal of the Japan Society of Naval Architects and Ocean Engineers, Vol. 11, pp. 109-116.   DOI   ScienceOn
4 Im, N. K., S. H. Park and G. K. Park(2006), A Study on the Present Status of Safety in Tug-Barge Transportation, Journal of the Korean Society of Marine Environment & Safety, Vol. 12, No. 1, pp. 61-66.
5 Kashiwagi, M., K. Kawasoe and M. Inada(2000), A Study on Ship Motion and Added Resistance in Waves, Journal of the Kansai Society of Naval Architects of Japan, No. 234, pp. 85-94.
6 Lee, J. H., H. Kawabe, B. W. Kim and M. K. Ha(2010), Comparison Calculation of the Added Resistance According to Trim Change of Ship with Forward Speed, Proceeding of the Spring Conference of the Society of Naval Architects of Korea, pp. 1086-1091.
7 Maruo, H. and K. Iwase(1980), Calculation of Added Resistance in Oblique Waves, Journal of the Society of Naval Architects of Japan, Vol. 147, pp. 79-84.
8 Takagi, K.(1991), Simplified Formulas for the Calculation of Added Resistance, Steady Lateral Force and Turning Moment in Waves, Journal of the Kansai Society of Naval Architects of Japan, No. 216, pp. 121-128.