潜艇旋臂回转试验数值模拟  

Simulation for submarine rotating-arm tests

作　　者：肖昌润[1] 刘瑞杰[1] 许可[2] 刘洋[1] 徐亚运[3] 

机构地区：[1]海军工程大学舰船工程系 [2]中国人民解放军91039部队 [3]中国人民解放军92339部队

出　　处：《江苏科技大学学报（自然科学版）》2014年第4期313-316,共4页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：总装预研基金资助项目(51314020203)

摘　　要：为模拟潜艇回转运动,文中以结构化网格为基础,分别选取了基于固定坐标系的Mesh Motion方法和基于运动坐标系的添加动量源项方法对旋转导数进行预报,对全附体SUBOFF模型进行回转运动仿真,并与试验结果进行对比.结果表明:Mesh Motion方法和添加动量源项方法均满足工程要求,添加动量源项方法计算时,网格数目少,有效降低了计算耗时.最后,根据Y+的不同分布,文中分析了回转运动中RNG k-ε湍流模型和SST k-ω湍流模型的计算精度和计算时间.In order to simulate submarine′s rotation movement , the mesh motion method fixed on the earth fixed coordinate system and the added momentum source method fixed on the submarine′s coordinate system are select-ed to predict the rotation derivatives .We calculated all-possessed SUBOFF model and compared it with experi-mental results.Both the mesh motion method and the added momentum source method meet the engineering re-quirements.The added momentum source uses less grids , so it can effectively reduce the computational time . Based on the different distributions of Y＋, we analyze the accuracy and computation time of RNG k-ε turbu-lence model and SST k-ωturbulence model .

关 键 词：旋臂试验 回转运动 旋转导数 动量源项 

分 类 号：U675.6[交通运输工程—船舶及航道工程]