According to the approximation of the velocity profile of turbulent flow in cylindrical pipes, flowrate measurement based upon the maximum velocity of circular cross-section is proposed.
根据已知圆管紊流流速分布的近似模地，研究了使用管道轴线处的最大流速测量流量的方法。
2
The discharge coefficients of the side-wall outflow hole are affected by the jet angle and cross-flow mass flow rate.
不同射流角度和横流流量对侧壁出流孔流量系数影响很大。
3
The technical characteristics of crossflow drying process in reduction rate stage and selection of drying process 'mathematical models are introduced.