Numerical simulation of rotating arm test for prediction of submarine rotary derivatives  

作　　者：潘雨村 周其斗 张怀新 

机构地区：[1]State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University [2]Department of Naval Architecture, Naval University of Engineering

出　　处：《Journal of Hydrodynamics》2015年第1期68-75,共8页水动力学研究与进展B辑（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.11272213)

摘　　要：The numerical method is used for predicting the rotary-based hydrodynamic coefficients of a submarine. Unsteady RANS simulations are carried out to numerically simulate the rotating ann test performed on the SUBOFF submarine model. The dynamic mesh method is adopted to simulate the rotary motions. From the hydrodynamic forces and moments acting on the submarine at different angular velocities, the rotary derivatives of the submarine can be derived. The computational results agree well with the experimental data. The interaction between the sail tip vortex and the cross flow in the hull boundary layer is discussed, and it is shown that the interaction leads to the ＂out-of-plane＂ loads acting on the submarine.The numerical method is used for predicting the rotary-based hydrodynamic coefficients of a submarine. Unsteady RANS simulations are carried out to numerically simulate the rotating ann test performed on the SUBOFF submarine model. The dynamic mesh method is adopted to simulate the rotary motions. From the hydrodynamic forces and moments acting on the submarine at different angular velocities, the rotary derivatives of the submarine can be derived. The computational results agree well with the experimental data. The interaction between the sail tip vortex and the cross flow in the hull boundary layer is discussed, and it is shown that the interaction leads to the ＂out-of-plane＂ loads acting on the submarine.

关 键 词：submarine maneuverability hydrodynamic coefficients rotating arm test dynamic mesh 

分 类 号：U674.76[交通运输工程—船舶及航道工程]