【作者】 蒋奉兼； 陈敏； 程捷； 张志国； 王先洲； 冯大奎；

【Author】 JIANG Feng-jian,CHEN Min,CHENG Jie,ZHANG Zhi-guo,WANG Xian-zhou,FENG Da-kui School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology Wuhan,430074.

【机构】 华中科技大学船舶与海洋工程学院；

【摘要】 旋臂水池试验是常用的舰船操纵性约束模型试验,能够方便地求取旋转导数Y_r和N_r以及相关的耦合导数。本研究从旋臂水池基本原理出发,用CFD方法构建了"带自由液面的水面舰船数值回转水池",对DTMB-5415M模型进行了回转运动的数值仿真,准确地再现了回转过程中的各种宏观流动现象。同时计算了回转运动过程中的侧向力,并求取了无因次的旋转水动力导数,通过计算结果与试验结果的对比,验证了本研究计算方法的可行性。更多还原

【Abstract】 Rotating Arm Test is a kind of ship maneuverability captive model test,it is commonly used in the prediction of ship hydrodynamic performance under turning motion.This paper establishes the "Numerical Turning Motion Tank" with commercial CFD software ANSYS CFX.A numerical test of DTMB-5415M model is taken in this numerical tank,the simulation accurately reproduces a variety of macroscopic flow phenomena.At the same time,the hydrodynamic forces and moments are calculated to obtain the dimensionless rotation hydrodynamic derivatives,all the calculation results are compared with experimental results as a validation of this method.更多还原