지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
In this paper, wake equalizing duct (WED) form optimization was carried out using computational fluid dynamics (CFD) techniques. A WED is a ring-shaped flow vane with a foil-type cross-section fitted to a hull in front of the upper propeller area. The main advantage of a WED is the power savings resulting from the uniformity of the velocity distribution on the propeller plane, a reduction in the flow separation at the aft-body, and lift generation with a forward force component on the foil section. This paper intends to evaluate these functions and find an optimized WED form for minimizing the viscous resistance and equalizing the wake distribution. In the optimization process, the study uses four WED parameters: the angle of the section, longitudinal location, and angles of the axes for the half rings against the longitudinal and transverse planes of the ship. KRISO 300K VLCC2 (KVLCC2) is chosen as an example ship to demonstrate the WED optimization. The optimization procedure uses 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 show that the optimized WED can reduce the viscous resistance at the expense of the uniformity of the wake distribution.
목차
ABSTRACT
1. 서론
2. WED의 설계 및 변형
3. 수치해석(Bare hull)
4. 최적화
5. 최적화 수행
6. 결론
후기
참고문헌
참고문헌 (11)
참고문헌 신청
3. [학술대회논문] - 이춘주 / 2004 / DWT 40,000톤급 정유운반선에 부착한 Vortex Generator에 대한 유체특성 연구 / 대한조선 학회 추계학술대회논문집 : 257 ~ 263
5. [학술지(정기간행물)] - 임채성 / 2007 / 컨테이너 운반선의 선미부가물에 의한 속도성능 향상에 대한 연구 / 대한조선학회 특별논문집 : 32 ~ 42
6. [보고서] - Broadley, I / 1997 / Effectiveness of Vortex Generator Position and Orientation on Highly Swept Wings
7. [학술지(정기간행물)] - Fahri, C / 2007 / A numerical study for effectiveness of a wake equalizing duct / Ocean Engineering 34 : 2138 ~ 2145
8. [단행본] - Schneekluth, H / 1987 / Ship Design for Efficiency and Economy / Btterqorth-Heinemann
5. [학술지(정기간행물)] - 임채성 / 2007 / 컨테이너 운반선의 선미부가물에 의한 속도성능 향상에 대한 연구 / 대한조선학회 특별논문집 : 32 ~ 42
6. [보고서] - Broadley, I / 1997 / Effectiveness of Vortex Generator Position and Orientation on Highly Swept Wings
7. [학술지(정기간행물)] - Fahri, C / 2007 / A numerical study for effectiveness of a wake equalizing duct / Ocean Engineering 34 : 2138 ~ 2145
8. [단행본] - Schneekluth, H / 1987 / Ship Design for Efficiency and Economy / Btterqorth-Heinemann
이 논문의 저자 정보
이 논문과 함께 이용한 논문
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2013-559-000315407