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本文介绍了一座高速低噪声气流流动装置的设计与使用。通过对这座流动装置的性能测试表明:在气流马赫数M=0~0.8条件下,该装置具有良好的流场性能和声学性能。目前,这座装置已投入使用,并在发展用于高速气流中进行声学测量的传声器探管研究和气动噪声的机理研究中取得很好的结果。
This article describes the design and use of a high-speed low-noise air-flow device. Through the performance test of the mobile device, it shows that the device has good flow field and acoustic performance under the conditions of gas flow Mach number M = 0 ~ 0.8. The unit is currently in use and has yielded good results in the development of microphone probe and aerodynamic noise studies for acoustic measurements in high-speed airflow.