基于大涡模拟 (LES) 方法，采用动态 Smagorinsky-Lilly 亚格子模型 (DSLM)，研究汽车侧窗风振噪声特性，首先与实验数据对比验证仿真方法准确性，并分析不同开度、不同组合开启方式、侧风以及车内乘员数量不同时的侧窗风振噪声特性。研究结果表明: 随车速增加，风振噪声声压级与频率均呈上升趋势; 侧窗在小开度时具有较低的风振噪声，大开度时车内风振噪声水平较高; 在正橫摆角下的整车风振噪声低于负橫摆角; 乘员数量对整车风振噪声水平的影响程度有限。

Based on the LES method，the buffeting noise characteristics of automobile side window was studied with the DSLM subgrid-scale model． The simulation method was verified through the comparison of experimental data，and the buffeting noise characteristics of different opening degrees of side windows，different combinations of opening modes，crosswinds and the number of passengers were also studied． The research results show that: the SPL and frequency of buffeting noise increases with increase of the vehicle speed; the side window has lower buffe-ting noise at a small opening degree and higher buffeting noise at a large opening degree; the buffeting noise under the positive yaw angle is lower than the negative yaw angle; the number of passengers has a limited impact on the buffeting noise．