高速滑行艇“海豚运动”现象的实时数值预报方法

上海交通大学学报（自然版） ›› 2014, Vol. 48 ›› Issue (1): 106-110.

高速滑行艇“海豚运动”现象的实时数值预报方法

凌宏杰，王志东

(江苏科技大学船舶与海洋工程学院，江苏镇江 212003)

收稿日期:2013-01-14
基金资助:
国家自然科学基金项目(51279070), 江苏省高等学校自然科学研究重大项目(12KJA_580001), 江苏省研究生创新计划项目, 江苏省优势学科项目资助

Real-Time Numerical Prediction Method of “Dolphin Motion” HighSpeed Planning Craft

LING Hongjie,WANG Zhidong

(Department of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China)

Received:2013-01-14

摘要/Abstract

摘要：

基于计算流体力学软件FLUENT及滑行艇纵向运动方程，编写了耦合求解滑行艇纵向运动响应特性的数值预报程序，进行了均匀来流中三维滑行艇模型“海豚运动”现象的数值模拟，分析了滑行艇在不同航速及重心位置条件下的升沉、纵摇运动特性.结果表明：当滑行艇的重心与艇艉的距离lg=0.231L(L为艇长)，体积Froude数Fr▽≥2.7时，滑行艇出现“海豚运动”现象，且艇体的升沉量、纵倾角和响应频率均随着航速的增加而增大；当Fr▽=5.0，滑行艇重心处于lg=0.381L，0.351L时均出现“海豚运动”现象，且其升沉量、纵摇角的幅值和响应频率均随着重心纵向位置移向艇艉而增大.

关键词: 高速滑行艇, 海豚运动, 数值预报

Abstract:

Based on the computational fluid dynamics software FLUENT and the longitudinal motion equation of planning craft crafts, a prediction procedure for coupling and solving of planning craft longitudinal motion response was compiled and the numerical simulation of the dolphin motion of three dimension planning craft model in the uniform flow movement was conducted. According to the different speed and different position of the center of gravity,under the condition of the motion characteristics of the heave and pitch of the planning craft, this paper timely numerically forecasts the boat body amplitude of heave and the angle of trim changing characteristic curve of pitch with time. The results show that, when the longitudinal position of the center of gravity lg=0.231L(L is the length of planning craft), and the volume Froude number Fr▽≥2.7, the dolphin motion of the planning craft appears, and with the increase of the speed, the amplitude of the heave ,the angle of trim and the frequency of the response increase; when Fr▽=5.0, lg=0.381L, 0.351L, the dolphin motion of the planning craft appears, and with the retrusive position of the center of gravity, the amplitude of the heave, the angle of pitching and the frequency of the response increase.

Key words：

Key words: high-speed planning craft, dolphin motion, numerical prediction

中图分类号:

U 675.91

凌宏杰，王志东. 高速滑行艇“海豚运动”现象的实时数值预报方法[J]. 上海交通大学学报（自然版）, 2014, 48(1): 106-110.

LING Hongjie,WANG Zhidong. Real-Time Numerical Prediction Method of “Dolphin Motion” HighSpeed Planning Craft[J]. Journal of Shanghai Jiaotong University, 2014, 48(1): 106-110.

参考文献

［1］Savander B R, Scorpio S M, Taylor R K. Steady hydrodynamic of planing surface ［J］. Journal of Ship Research, 2002, 46(4): 248279.

［2］Chung Y K, Chun H H. On the planing of a flat plate at high Froude numbers in a twodimensional case ［J］. Ocean Engineering, 2008, 35(7): 646652.

［3］Xie N, Vassalos D, Jasionowski A. A study of hdrodynamics of threedimensional planing surface ［J］. Journal of Ocean Engineering,2005,32(13):15391555.

［4］Yang C， Lhner R. Calculation of ship sinkage and trim using a finite element method and unstructured grids ［J］. International Journal of Computational Fluid Dynamics, 2002, 16(3): 217227.

［5］Carrica P M, Wilson R V, Noack R W. Ship mtions using singlephase level set with dynamic overset grids［J］. Computers and Fluids,2007,36(9):14151433.

［6］Ghassemi H, Kohansal A R. Higher order boundary element method applied to the hydrofoil beneath the free surface［C］∥Proceedings of the 28th International Conference on Ocean, Offshore and Engineering (OMAE2009). Hawaii, USA: Engineering Analysis with Boundary Elements, Elsevier, 2009.

［7］Sun H, Faltinsen O M. Porpoising and dynamic behavior of planing vessels in calm water ［C］∥Ninth International Conference on Fast Sea Transportation FAST2007. Shanghai: FAST, 2007.

［8］王兆立，牛江龙，秦再白，等.基于CFD 理论的滑行艇阻力数值计算［C］∥第十四届中国海洋（岸）工程学术讨论会论文集. 内蒙古呼和浩特: 中国海洋学会, 2009： 309315.

［9］高双, 朱丹齐, 林壮. 滑行艇的“海豚运动“现象的研究与控制［C］∥2006年船舶通讯导航学术会议. 无锡：中国造船工程学会, 2006： 131135.