利用旋度函数对汽车后视镜根部形状进行低噪声优化改进的研究

OPTIMIZATION OF THE SHAPE OF AN AUTOMOBILE SIDE MIRROR FOR LOW AERODYNAMIC NOISE BY APPLYING VORTICITY EQUATION ①

利用频域的旋度函数来指导汽车后视镜根部截面形状的低噪声优化改进，取得了降低脉动压力级近１０ ｄＢ左右的效果。

The shape of an automobile side mirror for low aerodynamic noise using vorticity function in frequency domain is optimized. After the improvement of the shape, about 10 dB reduction in fluctuation pressure level is obtained.