Numerical Analysis of Flow around Bow Rudder
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초록
In this study, the lift, drag and moments of the rudder that influences on the maneuvering ships directly has been investigated using CFD(Computational Fluid Dynamics). One of typical ship rudders effecting on the forces and moments is the bow rudders during maneuvering on the sea. Thus, the forces and moments should be investigated for the bow of ship rudder. Among the IFS bow rudder series, the balance IFS 54 BR 15 is used for study. As a turbulent model, standard k-epsilon is applied to this study. The hydrodynamic of the bow rudder, especially lift, drag and moment coefficients are calculated for the different angles of attack. The angles of attack between water flow and rudder are presented in cases including 0°, 5°, 10°, 15°, 20°, 25°, 30° and 35°. The results of calculation for those influences on maneuvering performance of ships are compared with the relevant results of the previous experimental studies.
Abstract
In this study, the lift, drag and moments of the rudder that influences on the maneuvering ships directly has been investigated using CFD(Computational Fluid Dynamics). One of typical ship rudders effecting on the forces and moments is the bow rudders during maneuvering on the sea. Thus, the forces and moments should be investigated for the bow of ship rudder. Among the IFS bow rudder series, the balance IFS 54 BR 15 is used for study. As a turbulent model, standard k-epsilon is applied to this study. The hydrodynamic of the bow rudder, especially lift, drag and moment coefficients are calculated for the different angles of attack. The angles of attack between water flow and rudder are presented in cases including 0°, 5°, 10°, 15°, 20°, 25°, 30° and 35°. The results of calculation for those influences on maneuvering performance of ships are compared with the relevant results of the previous experimental studies.
참고문헌 (6)
- J. Liu, "Impacts of the rudder profile on maneuvering performance of ships", Ocean Eng, 124, pp.226~240 (2016)
- V. L. Edward, "Principle of naval architecture, Volume III: Motions in waves and controllability", The Society of Naval Architects and Marine Engineers (1989)
- Y. Ozdemir, "Flow field analysis of a rudder by using computational fluid dynamics", 5th International Advanced Technologies Symposium (IATS'09) (2009)
- P. Lu, "Investigation of ventilation and current effect of tunnel thruster for DP applications", Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering (2015)
- Design and performance of bow thrusters, "L. J. L. Beveridge", Naval Ship Research and Development Center, ~ (1971)
- Design of ship rudders, "H. Thieme", Shipbuilding Institute University of Hamburg, ~ (1965)