| 1. | 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 |
| 2. | Velocity of approach factor
渐近速度系数 |
| 3. | 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。 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | Abstract : defining method of moving speed of vertical shaft hoist is discussed . the ralation of economy speed coefficient and hoisting height are expounded for calculating economy hoist speed . the hoist speed is adjusted according to change of hoisting assignment
文摘:论述立井提升机运行速度的确定方法，阐明经济速度系数与提升高度的关系，为计算经济提升速度提供依据，得出根据提升任务的变化相应地调整提升速度的结论。 |
| 7. | The method takes advantage of bezier curve to work out a set of blade profiles of centrifugal pump , using thickening law to thicken the profiles . then the pressure and suction lines of the blade can be obtained . it takes advantage of bezier surface to create pressure and suction surface and makes use of mdt software to create the three - dimensional blade entity
首先采用速度系数法计算得到离心泵叶轮的基本参数，再由b zier曲线生成一组叶轮叶片型线，按照加厚原理对型线进行加厚，得到正背叶片线，再采用张量积b zier曲面生成叶片正背面，由mdt进行三维实体造型得到叶片，从而得到流场计算区域的模型。 |
| 8. | In chapter four , according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps , the parameter equations of vane ' s modular curve of centrifugal pump are given , which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a . the results show that , in designing process of vane ' s modular curve of centrifugal pump , the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump , or the design of the modular curve of centrifugal pump is the kernel of hydraulic design
第四章依据固液两相流泵的边界层理论及对主流区速度场的分析，给出了离心泵叶片型线的参数方程；它是以叶片安装角为参变数，以引入的速度系数k _ v作为中间因子，将两相流泵的边界层理论和欧拉理论联系起来? ?它说明了这样一个事实，在离心泵叶片型线的设计过程中，它的整个形态或参数的确定都关系到两相流体的流动特性和泵的输出能力，或者说，离心泵型线的设计是其水力设计的核心。 |
| 9. | The mathematics model among the time of sky window , carrying capacity and traveling speed is made in this paper . " v - mode sky window " and " plumb sky window " is deeply researched , the influence rule is found , and the conclusion is made . in addition , the paper discusses the feasibility of large maintenance machinery in rail whirl trunk , put forward the construction condition , the measure and attentive proceeding
论文主要针对大型机械施工，通常采用的“ v型天窗”和“垂直天窗” ，分别从它们各自对线路通过能力和列车旅行速度两个方面，通过建立天窗时间与能力扣除和速度系数之间的数学模型，对其进行了深入的讨论和研究，并最终找到了它们之间的影响规律，得出了结论。 |
| 10. | In chapter five , as one of the applications of boundary layer theory on two - phase fluid pump , the calculation process and example analysis in vane design are given and the stability and convergence of algorithms and programs and rules showed in calculation are required
第五章作为固液两相流泵的边界层理论的应用之一，本章给出了它在叶轮设计中应用的计算过程及实例分析。通过实例分析及数值计算，本章得出关于算法和程序的稳定、收敛性结论以及速度系数在计算中所表现出的规律性。 |
