基于CFD的双艉客船阻力特性分析  

Ananysis of resistance characteristics of twin-skeg passenger ship based on CFD

作　　者：赵丙乾[1] 方昭昭[2] 喻露[1] 陈庆任[1] 

机构地区：[1]中国船级社武汉规范研究所,湖北武汉430022 [2]中国舰船研究设计中心,湖北武汉430064

出　　处：《中国舰船研究》2017年第3期23-28,共6页Chinese Journal of Ship Research

基　　金：中国舰船研究设计中心研发基金资助项目

摘　　要：[目的]随着绿色船舶规范的实施及推进,船舶能效指数,特别是船舶航速功率指标越来越受到业界的关注。为了精确获得双艉船型的航速功率指标及船舶流场信息,[方法]基于计算流体动力学(CFD)理论,提出一种双艉船型航行阻力预报及流场捕捉的工程方法。采用粘性流计算软件FINE/MARINE,对某双艉客船的航行阻力进行计算,探讨船舶第1层网格节点高度、船舶航速以及附体对计算结果的影响,并将不同航速下的阻力预报及其结果与试验数据进行对比。[结果]结果显示,预报误差基本在3%以内。[结论]研究表明,所提方法计算效率高且易于实现,预报精度能满足工程需要,具有较强的工程实用性。With the implementation and promotion of Rules for Green Ships, more and more attention has been paid by the maritime industry to the ship energy efficiency index. In order to evaluate the function relationship between speed and effective horsepower, and acquire the accurate flow field information of twin-skeg ships, a method for resistance prediction of twin-skeg ships based on the Computational Fluid Dynamics （CFD） theory is outlined. Numerical simulation and resistance prediction by FINE/MARINE for a twin-skeg passenger ship advancing at different speeds are carried out respectively. The effects of the mesh characteristics, calculating speed range, and existence of appendages such as rudders on resistance are discussed. Comparisons between present results and corresponding experimental are made, showing that the prediction error can be controlled below 3%. The results demonstrate that the proposed method is efficient enough to be realized and will meet the engineering requirements.

关 键 词：双艉客船 计算流体动力学 阻力预报 FINE/MARINE 

分 类 号：U661.311[交通运输工程—船舶及航道工程]