CFD를 이용한 유동제어 핀의 최적설계
The Design Optimization of a Flow Control Fin Using CFD
2
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
In this paper, the Flow Control Fin(FCF) optimization has been carried out using computational fluid dynamics(CFD) techniques. This study focused on evaluation for the performance of the FCF attached in the stern part of the ship. The main advantage of FCF is to enhance the resistance performance through the lift generation with a forward force component on the foil section, and the propulsive performance by the uniformity of velocity distribution on the propeller plane. This study intended to evaluate these functions and to find optimized FCF form for minimizing viscous resistance and equalizing wake distribution. Four parameters of FCF are used in the study,which were angle and position of FCF, longitudinal location, transverse location, and span length in the optimization process. KRISO 300K VLCC2(KVLCC2) was chosen for an example ship to demonstrate FCF for optimization. The optimization procedure utilized genetic algorithms (GAs), a gradient-based optimizer for the refinement of the solution, and Non-dominated Sorting GA-Ⅱ(NSGA-Ⅱ) for Multiobjective Optimization. The results showed that the optimized FCF could enhance the uniformity of wake distribution at the expense of viscous resistance.
Abstract
In this paper, the Flow Control Fin(FCF) optimization has been carried out using computational fluid dynamics(CFD) techniques. This study focused on evaluation for the performance of the FCF attached in the stern part of the ship. The main advantage of FCF is to enhance the resistance performance through the lift generation with a forward force component on the foil section, and the propulsive performance by the uniformity of velocity distribution on the propeller plane. This study intended to evaluate these functions and to find optimized FCF form for minimizing viscous resistance and equalizing wake distribution. Four parameters of FCF are used in the study,which were angle and position of FCF, longitudinal location, transverse location, and span length in the optimization process. KRISO 300K VLCC2(KVLCC2) was chosen for an example ship to demonstrate FCF for optimization. The optimization procedure utilized genetic algorithms (GAs), a gradient-based optimizer for the refinement of the solution, and Non-dominated Sorting GA-Ⅱ(NSGA-Ⅱ) for Multiobjective Optimization. The results showed that the optimized FCF could enhance the uniformity of wake distribution at the expense of viscous resistance.
참고문헌 (14)
- 최희종, "선미부에 유동제어판을 부착한 선박에 대한 포텐셜 유동해석", 대한조선학회 논문집, 46(6), pp.587~594 (2009), 대한조선학회
- Deb, K., "A Fast and Elitist Multiobjective Genetic Algorithm: NSGA-II", Institute of Electrical and Electronics Engineers Transactions on Evolutionary Computation, 6(2), pp.182~197 (2002)
- Hino, T., "Proceedings of CFD Workshop Tokyo", Proceedings of CFD Workshop Tokyo (2005)
- Jang, Y.H., "Notes on the Design and Application of Vortex Generators", Proceeding of the Annual Autumn Meeting the Society of Naval Architects of Korea, pp.467~472 (2006)
- 김형태, "LNG 운반선에 대한 수치해 변화에 영향을 주는 요소에 관한 연구", 대한조선학회 논문집, 43(6), pp.656~666 (2006), 대한조선학회
- 김병남, "KLNG선 모형 주위의 유동계산 비교", 대한조선학회 논문집, 46(3), pp.219~231 (2009), 대한조선학회
- 김희정, "전역 최적화기법과 파라메트릭 변환함수를 이용한 선형 최적화", 대한조선학회 논문집, 45(6), pp.590~600 (2008), 대한조선학회
- 김진, "KRISO 컨테이너 및 VLCC선형에 대한 RANS시뮬레이션", 대한조선학회 논문집, 42(6), pp.593~600 (2005), 대한조선학회
- Lee, H. S., "The Design Optimization of a Wake Equalizing Duct Using CFD", 석사, pp.2011
- Lee, C.J., "A Study on the Performances Affected by Vortex Generator for DWT 40,000Ton Product Carrier", Proceedings of the Annual Autumn Meeting the Society of Naval Architects of Korea, pp.257~263 (2004)
- 박동우, "유동제어평판을 가진 선박의 속도성능 향상에 관한 수치적 연구", 대한조선학회 논문집, 46(3), pp.268~278 (2009), 대한조선학회
- Schittkowski, K., "86. NLPQL : A FORTRAN subroutine solving constrained nonlinear programming problems", Annals of Operations Research, 5(2), pp.485~500 (1985)
- Wie, D. E., "The Design Optimization of a Flow Control Fin Using CFD", 석사, pp.2011
- 양해욱, "CFD를 이용한 모형선과 실선 스케일의 반류 비교", 대한조선학회 논문집, 47(2), pp.150~162 (2010), 대한조선학회