When the radial component of the vapour velocity and the axialvariation of the vapour temperature were neglected, the error of the sonic limit is within 10 per cent.
The variation of two-way tensile stress, strain distribution and branch height in the axial compressive bulging and compound bulging were compared respectively.
分别比较了轴向压缩胀形和复合胀形中管件支管顶部双向拉应力、应变以及支管高度等指标的变化。
3
The bigger the downstream water level, the outstanding of variation degree of axial velocity along radius distribution when upstream water level is same.