Wind noise measurements for automotive mirrors. Noise Control Engineering Journal, 2011, 59(6): 613-621.Ĭhen K H, Johnson J, Dietschi U, et al. Experimental and numerical studies on aerodynamic noise of automotive rear view mirror. Key words: vehicle engineering, aerodynamic noise, rear-view mirror, numerical simulation, modeling factors Results suggest that adjusting and combining these modeling factors properly can effectively reduce the influence of the rearview mirror on the aerodynamic noise of the front side window, which provides a good reference for the optimal design of the rearview mirror. The shape factors that affect the aerodynamic noise of the front window area, such as mirror cover, base shape and installation angle are summarize. The plane streamline diagrams, surface acoustic power diagrams and pressure cloud diagrams of the 5 rear-view mirrors are analyzed and compared. The noise data monitored by this numerical simulation method was basically consistent with the wind tunnel experiment results. The realizable k- ε model was used for steady-state analysis, and the separation vortex simulation was based on the realizable k- ε model for transient analysis. To reduce the aerodynamic noise in this area, numerical simulations of five rearview mirrors were carried out based on the rearview mirror-plate wind tunnel experiment. The aerodynamic noise in the front window area mainly originates from the exterior rearview mirrors.
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