Numerical analyses on latest foreign design data of centrifugal impeller 国外一种最新速度系数资料的插值求解
Velocity of approach factor 渐近速度系数
The experiment shows that by changing the velocity coefficient , the separation of boundary layer on pump vane can be controlled , and the performance of pump is improved and its hydraulic efficiency 实验证明通过改变叶片型线参数方程中的速度系数的取值,可以控制边界层的分离,进而改善泵的性能,提高其水力效率。
The velocity - coefficient method was used to design a 180mm diameter impeller with five single - arc - cylinder blades . the exit angle and inlet angle of the segment are 35 . 1 and 36 . 0 in degrees respectively . the shape volute ' s cross - section is the rectangle 该叶轮采用速度系数法设计,转轮外径180mm ,共有5张单圆弧圆柱形叶片,其出口安放角、进口安放角分别为35 . 1度、 36 . 0度。
3 . adopting changes the speed coefficient and analyses our country district industrial structure change speed to the industrial structure , and reaches : since the reform and open , our country industrial structure change speed assumes east and middle and west weakens the power 3 、采用对产业结构转换速度系数分析我国地区产业结构转换速度,得出:改革开放以来,我国产业结构转换速度呈东、中、西减弱之势。