一种基于计算流体力学的三维船舶横摇阻尼预报方法

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (08): 1190-1195.

一种基于计算流体力学的三维船舶横摇阻尼预报方法

杨春蕾,朱仁传,缪国平,范菊

(上海交通大学船舶海洋与建筑工程学院，海洋工程国家重点实验室,上海 200240)

收稿日期:2011-08-29 出版日期:2012-08-31 发布日期:2012-08-31
基金资助:
国家自然科学基金资助项目（50639020）,国家高技术研究发展计划（863）项目（2006AA09Z332）

A Roll Damping Prediction Method of Three-Dimensional Ships Based on CFD Computation

YANG Chun-Lei, ZHU Ren-Chuan, MIAO Guo-Ping, FAN Ju

(State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2011-08-29 Online:2012-08-31 Published:2012-08-31

摘要/Abstract

摘要： 针对三维船体强迫振荡运动，以黏性流理论为基础，通过求解雷诺平均纳维斯托克斯(Reynoldsaveraged NavierStokes,RANS)方程，计及自由面影响情况，对S60船在有航速和无航速时不同幅值的横摇运动进行了数值模拟.分析计算了三维船模的横摇阻尼系数，研究了横摇幅值和航速对横摇阻尼的影响，并与试验值和势流计算值进行了比较.结果表明，数值模拟能够显现出船体流场非线性特征以及黏性的影响，横摇阻尼系数与试验值吻合良好，较势流方法预报更为准确，可广泛应用于船舶与海洋工程浮式结构物的水动力性能分析研究.

关键词: 横摇阻尼, 黏流效应, 数值模拟

Abstract: Based on viscous flow theory, the simulations of forced roll of Series 60 were carried out by solving Reynolds averaged NavierStokes(RANS) equations with consideration of free surface effect. Roll damping coefficients of threedimensional ship body rolling at various frequencies and amplitudes which moves with and without forward speed were calculated. The influences of ship roll damping due to amplitudes and frequencies were analyzed. Comparisons of the numerical results of ship roll damping with experimental and potential theoretical ones were conducted. It shows that the presented computational method can give quite precise roll damping coefficients, which are better than the ones by potential theory and agree well with the corresponding experimental ones. It is of great significance to further analyze and predict ship hydrodynamic performance in waves.

Key words: roll damping, viscous effect, numerical simulation

中图分类号:

U 661.32

杨春蕾, 朱仁传, 缪国平, 范菊. 一种基于计算流体力学的三维船舶横摇阻尼预报方法[J]. 上海交通大学学报（自然版）, 2012, 46(08): 1190-1195.

YANG Chun-Lei, ZHU Ren-Chuan, MIAO Guo-Ping, FAN Ju. A Roll Damping Prediction Method of Three-Dimensional Ships Based on CFD Computation[J]. Journal of Shanghai Jiaotong University, 2012, 46(08): 1190-1195.

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