论文信息 - Measurements of discrete vortex noise in a closed-throat wind tunnel

Measurements of discrete vortex noise in a closed-throat wind tunnel

Measurements are presented of the discrete vortex noise emitted by a thin airfoil. These measurements were made in a new wind tunnel designed specifically for aerodynamic noise measurements. The tunnel is an indraft type with a 25- by 35- by 100-cm testing section and a sonic-throat noise suppressor just downstream of the test section. Directivity and standing wave patterns are presented and compared with theoretical predictions. Frequency scaling criteria are developed and compared with other investigations.

S. S. Davis | S. Davis

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