The soundpressure at near distance under free field was computed by using the wave number integration and the basic characteristics of the radiated noise were analyzes.
利用波数积分方法仿真计算了该模型在自由场条件下的近程声场,并分析了近场辐射噪声的基本规律。
2
Finally figures of direction coefficient of soundpressure level are given out. Then using these figures the relationship between sound power level and soundpressure level radiated by a fan in...