CFD 저항 해석을 이용한 컨테이너선 최적 트림추정법에 대한 연구
Study on the Estimation of the Optimum Trims in Container Carriers by using CFD Analysis of Ship Resistances
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초록
The main objective of the present study is to elucidate a correlation between ship resistances from computational fluid dynamics (CFD)and brake horse powers (BHP) from towing tank in container carriers. The tests were conducted for a range of combinations of trimconditions and speeds. To achieve this goal, 295 cases of numerical simulation have been performed using Star-CCM+ which hadbeen statistically verified to predict ship resistances (Lee & Lee, 2014). Based on the normal distribution of resistance errors in all casesof the 4 container carriers, the confidence interval of numerical error was estimated as [-2.33%,+2.42%] with 95% confidence. Thecorrelation coefficients between the ship resistances of CFD and the brake horse powers of the experiments were higher than 0.93. Asa result, the numerical calculation of ship resistances is able to be utilized in order to provide a quick guidance in selection of theoptimum loading condition.
Abstract
The main objective of the present study is to elucidate a correlation between ship resistances from computational fluid dynamics (CFD)and brake horse powers (BHP) from towing tank in container carriers. The tests were conducted for a range of combinations of trimconditions and speeds. To achieve this goal, 295 cases of numerical simulation have been performed using Star-CCM+ which hadbeen statistically verified to predict ship resistances (Lee & Lee, 2014). Based on the normal distribution of resistance errors in all casesof the 4 container carriers, the confidence interval of numerical error was estimated as [-2.33%,+2.42%] with 95% confidence. Thecorrelation coefficients between the ship resistances of CFD and the brake horse powers of the experiments were higher than 0.93. Asa result, the numerical calculation of ship resistances is able to be utilized in order to provide a quick guidance in selection of theoptimum loading condition.
참고문헌 (7)
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- Hollenbach, U., "Hydrodynamic trends in optimizing propulsion", Second International Symposium on Marine Propulsors - smp’11 (2011)
- 이상봉, "선체 저항에 대한 수치 해석의 통계적 신뢰도 분석", 대한조선학회 논문집, 51(4), pp.321~327 (2014), 대한조선학회
- 박동우, "선박의 트림 자세가 저항 성능에 미치는 영향", 대한조선학회 논문집, 50(2), pp.88~94 (2013), 대한조선학회
- 양지만, "대형유조선의 경사상태에서의 저항추진 성능추정", 대한조선학회 논문집, 42(4), pp.307~314 (2005), 대한조선학회
- 양지만, "대형유조선의 저항추진성능에 미치는 자세변화의 영향에 관한 연구", 대한조선학회 논문집, 43(3), pp.275~284 (2006), 대한조선학회