Development of energy-saving devices for a full slow-speed ship through improving propulsion performance
2
조회
0
다운로드
10
인용
0
참고문헌
키워드
초록
Energy-saving devices for 317K VLCC have been developed from a propulsion standpoint. Two ESD candidates were designed via computational tools. The first device WAFon composes of flow-control fins adapted for the ship wake to reduce the loss of rotational energy. The other is WAFon-D, which is a WAFon with a duct to obtain additional thrust and to distribute the inflow velocity on the propeller plane uniform. After selecting the candidates from the computed results, the speed performances were validated with model-tests. The hydrodynamic characteristics of the ESDs may be found in improved hull and propulsive efficiencies through increased wake fraction.
Abstract
Energy-saving devices for 317K VLCC have been developed from a propulsion standpoint. Two ESD candidates were designed via computational tools. The first device WAFon composes of flow-control fins adapted for the ship wake to reduce the loss of rotational energy. The other is WAFon-D, which is a WAFon with a duct to obtain additional thrust and to distribute the inflow velocity on the propeller plane uniform. After selecting the candidates from the computed results, the speed performances were validated with model-tests. The hydrodynamic characteristics of the ESDs may be found in improved hull and propulsive efficiencies through increased wake fraction.
참고문헌 (22)
- 최정은, "와류생성기를 부착한 선박의 속도성능에 대한 수치적 추정", 대한조선학회 논문집, 46(2), pp.136~147 (2009), 대한조선학회
- Choi, J. E., "Resistance and propulsion characteristics of various commercial ships based on CFD results", Ocean Engineering, 37(7), pp.549~566 (2010)
- Dang, J., "An exploratory study on the working principles of energy saving devices(ESDs)– PIV, CFD investigations and ESD design guidelines", Proceedings of the 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE2012-83053, Rio de Janeiro, Brazil (2012)
- Hino, T., , Proceedings of CFD Workshop 2005, Tokyo, Japan (2005)
- Ji, B., "Numerical analysis of cavitation evolution and excited pressure fluctuation around a propeller in non-uniform wake", International Journal of Multiphase Flow, 43, pp.13~21 (2012)
- Ji, B., "Unsteady numerical simulation of cavitating turbulent flow around a fighly skewed model marine propeller", Journal of Fluids Engineering-Transactions of the ASME, 133(1), pp.011102~ (2011)
- Masuko, A., "Energy Saving Device for Ships IHI-L. V. Fin", Ishikawajima-Harima Engineering Review, 38(6), pp.392~397 (1998)
- 강용덕, "편재된 비대칭형 전류고정날개 추진시스템에 관한 연구", 대한조선학회 논문집, 41(3), pp.13~21 (2004), 대한조선학회
- Kawakita, C., "CFD on cavitation around marine propellers with energy-saving devices", Mitsubishi Heavy Industries Technical Review, 49(1), pp.63~67 (2012)
- Kim, M. C., "A study on the asymmetric preswirl stator system", Journal of the Society of Naval Architects of Korea, 30(1), pp.30~44 (1993)
- Lee, C. J., "A study on the performances affected by vortex generator for DWT 40, 000 ton product carrier", Proceedings of the Annual Meeting, SNAK, Sanchung, pp.257~263 (2004)
- Lee, J. T., "Development of a preswirl stator-propeller system for improvement propulsion efficiency : a symmetric stator propulsion system", Journal of the Society of Naval Architects of Korea, 29(4), pp.132~145 (1992)
- Lee, J. T., "Development of a preswirl stator propulsion system for a 300K VLCC", Journal of the Society of Naval Architects of Korea, 31(1), pp.1~13 (1994)
- Mewis, F., "Mewis duct – new developments, solutions and conclusions", Second International Symposium on Marine Propulsors, Hamburg, Germany (2011)
- Morgut, M., "Influence of grid type and turbulence model on the numerical prediction of the flow around marine propellers working in uniform inflow", Ocean Engineering, 42, pp.26~34 (2012)
- 백광준, "RANS simulation of cavitation and hull pressure fluctuation for marine propeller operating behind-hull condition", International Journal of Naval Architecture and Ocean Engineering, 5(4), pp.502~512 (2013), 대한조선학회
- 박선호, "Investigation on the wall function implementation for the prediction of ship resistance", International Journal of Naval Architecture and Ocean Engineering, 5(1), pp.33~46 (2013), 대한조선학회
- Schneekluth, H., "Wake equalizing duct", The Naval Architect, 103, pp.147~150 (1986)
- 서정화, "Flexible CFD meshing strategy for prediction of ship resistance and propulsion performance", International Journal of Naval Architecture and Ocean Engineering, 2(3), pp.139~145 (2010), 대한조선학회
- 신현준, "Numerical and experimental investigation of conventional and un-conventional preswirl duct for VLCC", International Journal of Naval Architecture and Ocean Engineering, 5(3), pp.414~430 (2013), 대한조선학회
- Yang, J. M., "Effect of pre-swirl stator vane on the pro-peller hull interaction of a full ship", Proc. of the Annual Autumn Meeting, SNAK, Ulsan, 2000, pp.188~191 (2000)
- Yang, J. M., "Effect of Pre-Swirl Stator Vane on the Propeller Hull Interaction(2)", Proceedings of the Annual Autumn Meeting, SNAK, Seoul, pp.216~219 (2001)