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本文根据压缩机排气管的边界条件和初始条件,用特征线方法计算排气管的脉动气流。理论计算与试验结果较为符合。并根据声学理论分析排气噪声,提出理论上的予计及试验实测压缩机排气噪声的一种方法。
According to the compressor exhaust pipe boundary conditions and initial conditions, this paper uses the characteristic method to calculate the pulsating flow of the exhaust pipe. The theoretical calculation and experimental results are in good agreement. Based on the acoustic theory, the exhaust noise was analyzed. A theoretical method to test and measure the compressor exhaust noise was proposed.