基于CFD与三因次法结合的低速多用途船的阻力预报  

Study on the low-speed multi-purpose ship resistance prediction based on CFD and three dimensional method

作　　者：苏绍娟[1] 介推 王天霖[1] 刘波 

机构地区：[1]大连海事大学交通运输装备与海洋工程学院,辽宁大连116026 [2]大连航运职业技术学院,辽宁大连116000

出　　处：《舰船科学技术》2017年第4期59-63,共5页Ship Science and Technology

基　　金：国家重点研发计划资助项目(2016YFC0301500);国家自然科学基金资助项目(51609031;51379025);辽宁省教育厅科学研究一般资助项目(L2015067);中央高校基本科研业务费专项基金资助项目(3132016346)

摘　　要：为了实现对低速多用途船舶的阻力性能进行准确预报,提出将基于CFD的数值模拟与三因次法相结合的总阻力预报方法,采用Solidworks三维软件对某低速多用途船进行三维建模,依据Gambit软件对模型进行流域划分和网格划分,应用CFD理论选取合理的湍流模型和求解方法进行数值模拟计算,得到对应航速下船模的总阻力值系数,根据普鲁哈斯卡假设和三因次方法,利用最小二乘法拟合形状系数,进而计算出实船的总阻力,并且分析数值模拟的速度云图。最后与传统阻力估算方法-艾亚法进行比较,说明本文采用的阻力计算方法是可行性,给今后低速多用途肥大型船的阻力研究提供借鉴。In order to achieve the resistance performance accurately forecast for low-speed multipurpose ship, numeric- al simulation based on CFD with three dimensional conversion model method is used to calculate the total resistance.3D model of a low speed multi-purpose ship is built based on the solidworks. GAMBIT software is used to watershed division and meshing division. CFD theory is used to Numerical simulation calculation. The total resistance coefficient under the cor- responding speed is obtained. And according to Prohaska hypothesis and three-dimensional conversion model, the shape coefficient can be got through many times calculating. And then calculate the total resistance of the ship. The speed clouds are analyzed. Finally comparing with the traditional forecast resistance method to verify the method which was adopted in the paper has certain feasibility. Some references are given for the low speed multipurpose ship resistance study.

关 键 词：CFD 数值模拟 三因次法 阻力预报 

分 类 号：U661.1[交通运输工程—船舶及航道工程]