The numerical simulations of viscous flow field around the submarine model named SUBX were performed to analyze the impact of appendages on resistance and wake flow field. The conclusion shows up that the appendages greatly increase the viscous pressure resistance, and induce the uneven wake flow field. Especially,the unevenness of the wake flow inside the propeller radius is induced by fins,and the sail mainly disturbs the wake flow outside the propeller radius. The further study for the purpose of reducing resistance and unevenness of wake flow should be devoted to improve the shape and allocation of appendages and conjunction between appendages and hull.%针对SUBX潜艇模型,采用数值计算手段,开展附体对潜艇阻力及尾部伴流场的影响分析.计算表明,附体导致潜艇粘压阻力的显著增加,以及伴流场不均匀性的产生.稳定翼对桨盘面半径内伴流场不均匀性的影响较大,而指挥室围壳主要影响桨盘面半径外伴流场不均匀性.从降低阻力和改善伴流场角度考虑,需开展附体外形、位置及与主艇体连接形式的深入研究.
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