潜艇操纵性水动力数值计算中湍流模式的比较与运用

湍流模式的选取对潜艇操纵性水动力数值计算精度有着重要影响,采用六种湍流模式计算了SUBOFF主艇体及主艇体加指挥室围壳两种模型在一定漂角范围内的潜艇操纵性水动力,并与试验值进行了比较,结果表明SSTk-ω模型更为适合潜艇操纵性水动力计算。在此基础上对SUBOFF全附体模型在一定漂角和攻角范围内的艇体水动力进行预报计算,并对该计算方法应用于潜艇操纵性水动力预报计算的计算精度与适用范围进行了探讨。

Comparison and Application of Turbulence Modes in Submarine Maneuvering Hydrodynamic Forces Computation

The selection of turbulence mode plays an important role in the accurate numerical simulation of a submarine maneuvering hydrodynamic forces.In this paper,computations with six different turbulence modes were performed for the two configurations of the SUBOFF model,one was an axisymmetric hull and the other was hull with sail.Compared with experimental data,the results for varying drift angles,indicate that SST k-ω turbulence model is more suitable for submarine maneuvering hydrodynamic forces computation.Then,computation and prediction of the maneuvering hydrodynamic forces for SUBOFF model with full appendages were processed by varying attack angles and drift angles.The accuracy and applicability of the present method for predictive computation of submarine maneuvering hydrodynamic forces were also discussed.