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, numerical 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 corresponding 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.
2017,39(4): 59-63 收稿日期：2016-07-05
DOI：10.3404/j.issn.1672-7619.2017.04.012
分类号：U661.1
基金项目：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）
作者简介：苏绍娟(1979-),女,博士,副教授,研究方向为数字化船舶设计制造。
参考文献：
[1] 王金宝, 于海, 张越峰, 等. 低速肥大船舶尾流场数值模拟及阻力性能预报[J]. 水动力学研究与进展, 2010, 25(5):648-654. WANG Jin-bao, YU Hai, ZHANG Yue-feng, et al. Numerical simulation of viscous wake field and resistance prediction around slow-full ships[J].Chinese Journal of Hydrodynamics. 2010, 25(5):648-654.
[2] 倪崇本. 基于CFD的船舶阻力性能综合研究[D]. 上海:上海交通大学, 2012.
[3] 刘英良. 基于CFD的超大型集装箱船线型优化研究[D]. 中国舰船研究所, 2014.
[4] 王健. 基于FLUENT的CFD方法在船海工程中的实用性研究[D]. 大连:大连理工大学, 2012. 5.
[5] 常大伟, 杜正春, 张普, 等. 基于型线图的船舶三维自动建模算法研究及实现[J]. 船海工程, 2007, 36(5):13-16.
[6] 金梦显, 张佳宁, 张雷, 等. 基于阻力数值模拟的三体船侧体布置优化[J]. 大连海事大学学报, 2015, 41(3):15-18. JIN Meng-xian, ZHANG Jia-ning, ZHANG Lei, et al. Outrigger hulls' position optimization based on resistance numerical simulation for trimaran[J]. Journal of Dalian Maritime University, 2015, 41(3):15-18.
[7] 常欣, 郭春雨, 王超, 等. Fluent船舶流体力学仿真计算工程应用基础[M]. 哈尔滨:哈尔滨工程大学出版社, 2011.
[8] 周俊杰, 徐国权, 张华俊. FLUENT工程技术与实例分析(上册)[M]. 北京:中国水利水电出版社. 2013.
[9] 宋家瑾, 周占群, 谢克振. 对肥大船估算形状因子实用方法的探讨[J]. 交通部上海船舶运输科学研究所学报, 1981, 1(1):81-91. SONG Jia-jing, ZHOU Zhan-qun, XIE Ke-zhen. On the practical methods of Estimating form factors for full form ships[J]. Journal of Shanghai Shipping Science Institute.1981, 1(1):81-91.
[10] 郭春雨, 刘桂杰, 周广利, 等. 艾亚法与兰泼凯勒法权重修正的船舶阻力预报[J]. 船海工程, 2014, 43(4):34-37. GUO Chun-yun, LIU Gui-jie, ZHOU Guang-li, et al.Ship resistance forecast nased on weighting factor correction with ayre method and lap-keller method[J]. Ship & Ocean Engineering. 2014, 43(4):34-37.
