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。
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.
出处
《声学学报》
EI
CSCD
北大核心
1990年第5期378-383,共6页
Acta Acustica
