X舵在不同位置时SUBOFF潜艇的水动力特性

王祥瑞，王琨，焦波^*，卜治丞

山东交通学院船舶与港口工程学院，山东 威海   264209

摘要：为分析X舵在不同纵向位置时现代潜艇的水动力特性，采用计算流体力学进行数值模拟，采用非结构网格研究X舵在3个位置时SUBOFF潜艇在不同来流速度下直航所受总阻力，及在攻角为±5°、±10°下所受纵向力、垂向力和俯仰力矩，研究直航和俯仰运动状态下X舵纵向布局对潜艇水动力性能的影响，及对应的压力云图。对结果进行分析对比可知：X舵位置变化对潜艇所受纵向力的影响较小，但对垂向力和俯仰力矩影响增大；随X舵位置向后移动，潜艇的垂向力增大，俯仰力矩减小，两者均在攻角为±5°时变化最大。

关键词：X舵；SUBOFF潜艇；水动力；计算流体力学

Hydrodynamic characteristics of SUBOFF marine with X-rudder at different positions

WANG Xiangrui, WANG Kun, JIAO Bo^*, BU Zhicheng

Naval Architecture and Port Engineering Colledge, Shandong Jiaotong University, Weihai 264209，China

Abstract:In order to analyze the hydrodynamic characteristics of modern submarine with X rudder at different longitudinal positions, computational fluid dynamics (CFD) is used to carry out numerical simulation, and unstructured grid is used to study the total resistance of SUBOFF submarine with X rudder at three positions under different flow velocities in straight sailing, as well as longitudinal force, vertical force and pitching moment at attack angles of ±5° and ±10°. The effects of the longitudinal layout of X-rudder on the hydrodynamic performance of submarine in straight sailing and pitching motion and the corresponding pressure nephogram are obtained. The analysis and comparison of the results show that the change of X rudder position has little influence on the longitudinal force of submarine, but has more influence on the vertical force and pitching moment. With the X rudder position moving backward, the submarine′s vertical force increases and the pitching moment decreases, both of which have the maximum variation at attack angles of ±5°.

Keywords:X-rudder; SUBOFF marine; hydrodynamic; CFD simulation