Research on Calculation Method of Linear Hydrodynamic Derivatives Related to Ship Maneuvering

李冬荔; 王彪; 杨亮

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Research on Calculation Method of Linear Hydrodynamic Derivatives Related to Ship Maneuvering

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- Research on Calculation Method of Linear Hydrodynamic Derivatives Related to Ship Maneuvering
- 船舶操纵线性水动力导数计算方法研究
- Vol. 29, Issue 6, Pages: 531-537(2008)
- 作者机构：
  
  1. 哈尔滨工程大学水下机器人技术国防科技重点实验室
  2. 中北大学机械工程与自动化学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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李冬荔, 王彪, 杨亮. Research on Calculation Method of Linear Hydrodynamic Derivatives Related to Ship Maneuvering[J]. 2008, 29(6): 531-537.
DOI：

李冬荔, 王彪, 杨亮. Research on Calculation Method of Linear Hydrodynamic Derivatives Related to Ship Maneuvering[J]. 2008, 29(6): 531-537. DOI：

摘要

以粘性流场中船舶操纵水动力预报为研究背景

通过对商用计算流体力学软件FLUENT的二次开发

采用其动网格技术以及后处理系统

对大型船舶的线性水动力导数进行了数值计算.考虑变舵角、斜航、纯横荡、纯首摇运动状态

得出随船坐标系下作用于操纵运动船体的水动力及力矩

并对之采用最小二乘法进行曲线拟合得到船舶操纵运动的线性水动力导数

数值计算结果与理论估算值吻合.稳定的计算结果表明该方法可用于复杂船舶运动的水动力导数计算.

Abstract

In order to predict the ship maneuverability in viscous flows

linear hydrodynamic derivatives related to ship maneuvering were analyzed using a dynamic mesh method and post-processing system

which was based on the commercial software FLUENT.Ship maneuvering motions of the different heading angles

rudder angles

swaying and yawing are considered.Hydrodynamic forces and moments acting on a maneuvering ship are obtained in the body-fixed coordinate system.Thus linear hydrodynamic derivatives of the ship maneuvering motions are calculated by least square curve fitting.Numerical calculation results accorded with the theory values very well.The stable computational results show that this method can be used to calculate the hydrodynamic derivatives of ship complicated motions.

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references

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Wilson R V,Carrica P M,Stern F.Unsteady RANS simulation of the ship forward speed diffraction problem[J].Computers&Fluids,2006(35):545-570.

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张怀新,刘应中,缪国平.带自由面三维船体周围粘性流场的数值模拟[J].上海交通大学学报,2001,35(10):1429-1432.Zhang Huaixin,Liu Yingzhong,Miao Guoping.Numerical simulation of three-dimensional viscous flow with freesurface about a ship[J].Journal of Shanhai Jiao tong University,2001,35(10):1429-1432.(in Chinese)

范尚雍.船舶操纵性[M].北京:国防工业出版社,1988:136-146.

王福军.计算流体动力学分析——CFD软件原理与应用[M].北京:清华大学出版社,2004:92-93.

郭正,刘君,瞿章华.动网格技术在二维非结构网格中的实现[A].第十届全国计算流体力学会议论文集[C].哈尔滨:哈尔滨工业大学出版社,1996:360-364.Guo Zheng,Liu jun,Qu Zhanghua.Realization of dynamic mesh in 2D unstructured mesh[A].The 10th NationalConference on CFD[C].Harbin:Harbin Institute of Technology Press,1996:360-364.(in Chinese)

许维德.湍流边界层理论[M].哈尔滨:哈尔滨船舶工程学院出版社,1985:70-76.

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