【摘要】 采用二维Ｎ－Ｓ方程及时间序列采样法对轿车后视镜尾部流场中作用于车身壁面的脉动压力进行频谱分析．并与风洞试验实测值进行对比．结果表明无论是时域还是频域，计算曲线都与实测曲线形状吻合，而在量值上相差约３～５ｄＢ．更多还原

【Abstract】 This paper deals with spectrum analysis of fluctuation pressure for the side mirror of a sedan car by using two dimensional N S equations and time series sampling method. The calculated pressure fluctuation is compared with measured values and coincidences are found between calculated curves and measured ones both in time domain and in frequency domain. The error of calculated pressure fluctuation levels are estimated around 3～5dB.更多还原