DARPA2潜艇模型定常流动黏性流场和水动力计算  

Numerical computation of steady viscous flow and hydrodynamic force of DARPA2 submarine model

作　　者：于向阳 孟庆昌[2] 刘巨斌[2] 张志宏[2] YU Xiang-yang;MENG Qing-chang;LIU Ju-bin;ZHANG Zhi-hong(Naval Aviation University Qingdao Brance,Qingdao 266041,China;Dept,of Basic Courses,Naval Univ.of Engineering,Wuhan 430033,China)

机构地区：[1]海军航空大学青岛校区,山东青岛266041 [2]海军工程大学基础部,武汉430033

出　　处：《海军工程大学学报》2020年第2期15-19,共5页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(51309230);装备预研共用基金资助项目(9140A13050215JB11191);海军工程大学科研发展基金自主立项项目(425317Q003)。

摘　　要：为了进一步验证SA湍流模式模拟分离流动问题的能力,采用SA(Cυ=30)湍流模型,数值求解定常不可压缩的RANS方程,计算DARPA2潜艇模型定常流动黏性流场和水动力;速度-压力耦合采用SIMPLE方法处理,对流项采用二阶迎风格式,隐式迭代求解方程组。得到的数值计算结果与实验值符合较好。潜艇不同部分对水动力的贡献及受攻角的影响是不同的,升力系数随攻角的增加,艉附体的作用明显增强,而指挥台的作用不是很明显;指挥台和艉附体分别存在时,水动力系数随攻角变化的趋势与全附体时是一致的,曲线不存在奇异性变化。In order to further validate the performance of SA turbulence model in separating flow si-mulation,SA(Cυ=30)is used to simulate the flow and hydrodynamics of DARPA2 submarine model with full appendages in the way of finite volume method which is based on unstructured grids.SIMPLE(semi-implicit method for pressure linked equations)algorithm is used to handle velocity-pressure coupling,SOU(second order upwind)scheme is used for convective term and the results are in good agreement with the experimental data.With the increase of incidence angle,the stern appen-dages play an important role in lift force,however,the sail plays little role.The body with different appendages nearly have the same trend,also there is no strange change on the lift force.

关 键 词：数值模拟 定常黏性流场计算 DARPA2潜艇模型 

分 类 号：U661.1[交通运输工程—船舶及航道工程]