查询词典 water flow

Based on the Saint-venant equations describing the channel flow movement, the nonlinear algebraic equations derived by the use of Preissmann weighted implicit four-point scheme are solved with the Netwon-Raphson method. A combined Gauss main-element elimination method with compress-storage technique is proposed. The relaxation iterative method for solving branch river networks is extended, which can turn the problem of any complex river networks into the problem of a series of single rivers. The coupling of hydraulic model with water quality model is built up. The combined model was applied to a large complicated river networks with numerical hydraulic structure which influenced by strong tide, storm and heave rain. Visualization of computational results is realized by means of MapInfo, which displays the computational results in fast, convenient and accurate way.

水力模型以描述河道洪水波运动的Saint-Venant方程组为基础，用Newton-Raphson方法直接求解按Preissmann加权四点格式进行离散所得的非线性代数方程组，提出了压缩存贮形式的Gauss列主元消去法并对数值解的收敛性进行了讨论；将支流流量的松弛迭代方法从树状河系推广到了环状河网，使任意复杂河网水力计算的问题都可化为一系列的单一河道的水力计算问题；建立了水力模型与水质模型的联接，初步应用于既有洪水、暴雨、强潮等综合影响，又存在多种水工建筑物及水力调度问题的大型复杂河网中的非恒定流水力、水质计算问题；利用MapInfo对计算结果的可视化进行了研究，有利于决策者快速、方便、准确地作出决策。

Not yet, but the amount of glacier water affects a river's flow volume.

现在不是，但是大量的冰川融化的水会影响河流的流量。

Globe valve , to throttle flow in a cooling water system?

在冷却水系统中，相对於球形阀，下列何者是使用闸阀节流的不利点？

In the absence of the Earth's gravitational pull, water will not flow down.

答： 1：在地球引力的情况下，水不会流下来。

The effect of groyne length and layout on water surface is analyzed in the paper. Based on the results of simulation and experiment, the local energy loss of the flow due to the groyne is studied. Consequently the surface variation and height of damming are also analyzed.

论文分析了丁坝长度与布置对水面线的影响，根据流场、紊动场模拟结果和实验结果研 ABSTRACT究丁坝造成的水流局部能量损失，并对水面变化和丁坝奎水高度进行了分析。

Through the study above, a refined description and modeling to flow field and water surface near the groyne in river is conducted with 2-D and 3-D mathematical models. The results by simulation are consistent well with experiment data.

通过上述研究，作者采用二维和三维数学模型对水槽试验和天然河道中丁坝附近流场和水面形态进行了精细地描述和模拟，计算结果和实测结果吻合良好。

Concerning the planning, it was arranged to 120° groyne and the direction of flow diversion, in the construction, water jetting pile sinking was used in the experiment fixed concrete pile, and lead wire cage rubble was filled.

在规划布置时，宜布置成下挑式，顺水导流；施工时采用射水沉桩的方式固定混凝土桩，人工在混凝土桩间填置铅丝笼块石。

A new thought line of reservoir characterization is put forward based on the combination of the high resolution sequence stratigraphy,the architectural element and flow unit analysis method.It integrates the static geological body with the dynamic developing process,the reservoir heterogenesis with oil and water distribution from macro scale to micro scale.

应用高分辨率层序地层、结构单元及流动单元分析的三位一体理论指导储集层的表征建模，从而形成由宏观到微观、静态地质实体与动态开发过程、储集层非均质性与油水分布及流动规律相结合的体系是储集层精细描述的新思路。

Biot se situe sur les collines, avec un foret au dessous, maintenant en automne ou hiver il n y a pas assez d eau, donc it doesn t flow so fast and we cannot see the small water falls as in summer time, mais quand même c est assez sympa.

村子是建在山上山脚下就是一片林子秋冬时候水就少了流没有那样湍急也看不到落差形成的小瀑布然而还是惹人喜爱。

An efficient horse collar had disseminated throughout society, drastically increasing farm acreage, while water and wind mills were improved, increasing the flow of lumber, flour, and drainage.

一种有效的马项圈在社会上流传，这极大地增加了可耕种土地的面积，当水磨以及风车磨坊的性能得到提升时，更是加大了原木。面粉以及排水系统的发展。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。