中文摘要：

首先,用CFD方法计算得到潜艇尾部非均匀伴流场,并用面元法对非均匀流场中的螺旋桨非定常压力分布进行了计算,将潜艇伴流场的计算结果以及螺旋桨非定常力的计算结果与实验结果进行了比较,结果吻合较好;然后,将计算得到的压力分布时域信号输入到噪声积分方程中,计算出螺旋桨诱导的噪声声压,所得到伪噪声声压级与Seol的噪声声压级吻合很好。结果证明：该方法可真实考虑螺旋桨形状,对噪声源和观测点的距离没有作任何近似,计算速度快,为潜艇螺旋桨的噪声性能快速评估及优化提供了技术支撑。

英文摘要：

The uniform flow of submarine propeller disk is obtained by CFD method, and the unsteady force distribution of submarine propeller in uniform flow is calculated by surface panel method, the results of which are consistent with the test data. Then the time-dependent pressure data are used as the input for Ffowcs Williams-Hawkings formulation, and the acoustics pressure is predicted and comforms with that of Seol. The blade frequency noise of submarine propeller can be calculated quick- ly by the proposed method, which can provide a technology support for the noise evaluation and opti- mization of submarine propeller.