The volutes with different shape of sections have no effect on the component of the noise, but have weak infection on the dipole intensity. The intensity of dipole source in the rectangle volute is smaller at rated flow condition and large flow condition. 蜗壳断面的形状对于流动噪声的成分的改变影响不大,对偶极子声源强度的有一定的影响,设计工况和大流量工况下矩形蜗壳的强度要小一些。
The results indicate that the electrical action is weak and charge structure is quasi reverted dipole and no relation to middle atmosphere average relation humidity when CAPE is small. 结果表明,CAPE较小时,电荷结构与中层平均相对湿度的大小无关,均为准反极性,且起电活动较弱;
The newest experimental results of weak interaction constants defined in neutron decay and neutron electrical dipole moment are given. 列举了中子衰变弱相互作用常数和中子电偶极矩的最近测量结果。