| 脉动喷注噪声与稳态喷注噪声的关系 |
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| 引用本文： | 丰乐平, 马大猷. 脉动喷注噪声与稳态喷注噪声的关系[J]. 声学学报, 1990, 15(5): 378-383. DOI: 10.15949/j.cnki.0371-0025.1990.05.008 |
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| 作者姓名： | 丰乐平 马大猷 |
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| 作者单位： | 中国科学院声学研究所(丰乐平)，中国科学院声学研究所(马大猷) |
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| 摘 要： | 在假设气流脉动基本不影响湍流性质的基础上,求得了脉动喷注噪声的声压级公式(90°方向,1m远)。稳态喷注噪声的声压级,相当于脉动频率为零的特例,从而将脉动喷注噪声和稳态喷注噪声统一了起来,实验结果与理论符合。
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| 收稿时间： | 1989-05-24 |
Relations between pulsed jet noise and steadyjet noise |
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| FENG Leping, MAA Dah-You. Relations between pulsed jet noise and steadyjet noise[J]. ACTA ACUSTICA, 1990, 15(5): 378-383. DOI: 10.15949/j.cnki.0371-0025.1990.05.008 |
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| Authors: | FENG Leping MAA Dah-You |
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| Abstract: | On the hypothesis that the turbulent flow is practically not affected in character by pulsation of the flow, the formula for sound pressure level of pulsed jet noise is derived in 90° direction and 1 meter away from the nozzle. The steady jet noise is, then a special case when the pulsating frequency is zero. The results agree well with experiments. |
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