Decreasing the M Value of the Valves to Reduce the Air Dynamic Noise in the Compressor
نویسنده
چکیده
Based on the low of the eighth power of speed of M.J. Lighthill this article has derived the calculating formula for the air dynamic noise power in the compressor, and analysed the factors to affect the noise, also indicated that the dynamic noise in the compressor mainly comes from the valve jet noise; the principle to reduce the dynamic noise is to get a small Reynolds number Re; the emphasis to reduce the noise is on the jet turbulent flow noise; the efficient way to reduce the noise is to decrease the valve Nach number.
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