| 1. | Calculation on uniform flow depth and critical depth of open channel with iterative method
用迭代法计算明渠均匀流水深和临界水深 |
| 2. | On iteration algorithms of uniform flow depth and critical water depth in open channels
几个常用断面明渠均匀流水深和临界水深的迭代算法 |
| 3. | Operator - splitting method for calculating uniform flow depth s and bed widths of rectangular open channels
矩形明渠均匀流水深和底宽的算子分裂算法 |
| 4. | The calculation results are given for the bottom width , curvature radius , channel length , slope , flow depth , and flow velocity of the bend
优化结果给出了引水弯道底宽、曲率半径、中心长度、纵向比降、水深、流速。 |
| 5. | The results of soil trough experiment indicated that , the flow velocity and froude number would add when the rainfall splash intensity rose ; the flow depth and resistance coefficient would decrease when the rainfall splash intensity increased
土槽试验结果表明：土壤坡面薄层水流流速和弗汝德数随雨滴打击强度的增加而增加，水深、阻力系数随雨滴打击强度的增加而降低。 |
| 6. | The results of flume experiment indicated that , the flow velocity and froude number of the overland flow would fall with the rainfall splash intensity rose ; the flow depth and resistance coefficient would enhance with the rainfall splash intensity increased
水槽试验结果表明：水槽槽面薄层水流流速及弗汝德数随雨滴打击强度的增加而降低，水深、阻力系数随雨滴打击强度的增加而增加。 |
| 7. | The thesis " main studies and achievements are as follows : 1 . under the assumption of double - layer computational mode , the governing equations for the horizontal 2 - d stratified density current is derived by integrating the 3 - d fundamental equations along the flow depth . 2
在异重流双层计算模式下，从三维水沙基本方程出发，利用数学工具沿垂线积分，推导得出了平面二维异重流上、下两层水体的水沙运动基本方程。 |
| 8. | On the basis of consulting a large number of literatures domestic and aboard , the present situation and latest development of hydrodynamic characteristics of overland flow and slope erosion dynamic process were reviewed . aiming at revealing the effect of rainfall splash intensity on hydrodynamic features of sheet flow and slope erosion , with a combination of runoff experiment and simulated rainfall experiment with a fixed intensity , applying hydrodynamic and erosive theory , the effect of rainfall on overland flow velocity and the influence of rainfall splash intensity on hydrodynamic features ( such as velocity , flow depth , flow patterns , resistance ) of sheet flow on slope and the influence of rainfall splash intensity on the overland flow sediment contain was researched
本文在查阅了大量国内外文献资料，全面了解了坡面流水动力学特性及坡面侵蚀动力过程等方面的研究现状及最新进展的基础上，以揭示雨滴打击动能对坡面薄层水流水动力学特性及坡面侵蚀的影响为目标，采用水槽放水试验和定雨强模拟试验相结合的方法，运用水动力学与侵蚀理论，研究了降雨对坡面薄层水流流速的影响，雨滴打击强度对坡面薄层水流流速、水深、流态、阻力等水动力学参数的影响，雨滴击溅作用对坡面流泥沙含量的影响。 |
| 9. | These measures are as follows : shorten the primary wind intervals to improve thermal load of the burner ; reduce the size of hypothetical circle of contact to prevent the flame from splashing ; use nozzles with larger height / width ratio to increase the effusive rigidity , so as to increase the jet flow depth of secondary wind into the main jet flow ; use a higher primary wind velocity to increase its jet flow rigidity ; use a special flame holder structure of the primary nozzle , so as to improve
这些技术措施主要有:缩小一次风间距以提高燃烧器区域热负荷;缩小假想切圆防止火焰刷墙;采用高宽比较大的二次风喷口以增加射流刚性,提高二次风射流进入主射流的深度;采用较高的一次风速来提高一次风射流刚性;一次风喷口采用特殊稳燃结构;提高下二次风的托粉能力。 |
