一种计及姿态变化的船舶阻力预报方法  

Approach of Ship Resistance Prediction with Consideration of Hull Gesture

作　　者：郭春雨[1] 王恋舟 赵庆新[1] 吴铁成[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《船舶工程》2015年第1期31-34,共4页Ship Engineering

基　　金：国家自然科学基金(41176074;51209048);教育部博士点基金(20102304120026);基于波形测量的兴波阻力分离预报技术研究(J010212002)

摘　　要：对于航行于水面的舰船,船体姿态会随着航速的增加在航行中发生明显变化,这种姿态变化后的阻力较通常计算的以约束模型为基准的阻力预报是有明显差别的。采用CFD方法实现了以KCS船为模型进行模型自由状态下的阻力预报,并和相关实验数据进行了比较。结果表明,该方法避免了由于船体运动造成流场网格扭曲与计算发散等问题,具有良好的稳定性。另外,该方法充分考虑了船体姿态的影响,计算结果令人满意。As for surface ship, the hull gesture will change obviously with the increasing speed The ship resistance after the hull gesture change is often different from the value predicted on the basis of fixed model. In the thesis, the resistance prediction of a KCS ship is conducted by ship model test in which the free model is used. Then the results of the resistance test are compared with the related experiment data. The results shows that this method is stable and capable of avoiding issues caused by the movement of ship, such as computing divergence and twisted flow fteld.

关 键 词：阻力预报 船体姿态 CFD KCS 

分 类 号：U661.311[交通运输工程—船舶及航道工程]