船舶操纵运动CFD数值模拟研究进展

CFD simulations of ship maneuvering motion

船舶操纵性是船舶设计中最关心的性能之一,而船舶操纵运动响应可以用于评估操纵性能的优劣。随着高性能计算机的飞速发展以及计算流体力学的长足进步,采用CFD全粘性流场求解方法进行船舶操纵运动,尤其是带桨带舵船舶操纵运动的数值模拟研究有着巨大的潜力和工程应用前景。本文阐述了基于CFD方法进行的船舶操纵运动数值模拟及约束船模操纵运动和自航船模操纵运动数值模拟研究状况,阐述了螺旋桨体积力模型、滑移网格方法和重叠网格方法在自航船舶操纵运动数值模拟中的研究进展。简述了船舶操纵运动数值模拟研究中的挑战及未来研究的趋势。

Ship maneuverability is one of the most important ship design issues that can be addressed by performing a ship-maneuvering motion response assessment. With the rapid development of high-performance computers and computational fluid dynamics（ CFD）,there is a huge potential in numerical simulations of engineering applications such as simulations of the ship-maneuvering motion with propellers and rudders using CFD with the full-viscosity fluid field solution method. This paper reports the research progress of CFD simulations on maneuvering motion;presents simulations of the maneuvering motion of the captive ship model vs free running ship model; and documents the progress of the propeller body force model,the sliding mesh method,and the overset grid methods in the simulations of the maneuvering motion of the free running ship model. It then summarizes the challenges and future trends in CFD simulation research on ship-maneuvering motion.