查询词典 Reynold

The reasonable value ranges of turbulent Prandtl number for different Reynold numbers were suggested. The conclusions are valuable for the study of various complicated flows using mathematical models.

得出了紊动普朗特数在大小不同雷诺数下的合理取值变化范围，其结论对采用数学模型研究各种复杂流动具有指导意义。

By solving the optimum -- diameter equations for the case of critical Reynold number, it has been found possible to decide whether any given flow will be turbulent or viscous in a pipe of optimum diameter. At these equation...

本 文所推导的公式及算图都是以我国目前的价格指标为依据，因此应用它来选取经济管径应当是适合于我国情况的。

We change the Reynold number, pressure, gas flux and liquid flux in the aeration test of wastewater respectively, and analyze their influence on the performance of the bioreactor by evaluating degradation of COD.

在废水实验中，改变了Re数，出口压力P、气体流量Q以及液体流量Q_1，通过对COD降解效果的测试，分析了各参数对涡旋波膜生物反应器性能的影响。

As the Reynold number increased,the thermal boundary layer thickness and the friction resistance coefficient decreased, while the Nusselt number increased.

摘 要：利用软件Gambit建立了微通道换热器的三维流动与传热模型，用Fluent软件进行三维流场、温度场的分析与仿真。

Keywords local strictured ;flow;separation;Reynold number

局部狭窄；流动；分离；雷诺数

Sponding finite element matries equations were deduced to provide the necessery computing subroutines. Study was concentrated on the 80% stenosis model with Reynold number varing from 100～800. Results have been compared with the Newtonian flow under the same conditions.

在FIDAP程序库中提交了有关子程序，分别考虑了80％模型在不同雷诺数下的速度分布，压力分布和壁面剪应力分布，并将计算结果与同样条件下牛顿流体的结果进行了比较和分析。

B: To H model blade tip, the film cooling effectiveness was controlled by main flow Reynold number, and has little relation with blow ration, which is different from normal film cooling.

且主流流速大时，冷却效率变低，且增大气膜吹风比对提高冷却效率不很明显，这一点不同于其它简单结构的气膜冷却。

It is found that water velocity vertical distribution under ice-cover is influenced mainly by the relative size of channel roughness and ice-cover roughness, less by the water depth and not sensitive to the variation of Reynold number as well, which is relatively uniform in the flow core and deviates from the logarithmic law.

结果表明：冰盖下水流流速垂向分布主要受床面与冰盖粗糙度的相对大小影响，受水深影响较小，对雷诺数变化并不敏感；在流动核心部分分布较为均匀，并不遵循对数分布规律。

Analysis based on hydromechanics indicates that the size of minimum vortexes determines the size of agglomerates of xonotlite. The stirring Reynold's number should be less than 16500 for formation of large agglomerates.

搅伴流体力学分析指出搅伴产生最小旋涡尺寸决定了球形团聚体的大小，为了获得大的球形团聚体，搅伴雷诺数应该小于16500。

A: To flat model blade tip, the film cooling effectiveness was controlled mainly by blow ration , and the heat transfer coefficient was governed by main flow Reynold number.

第三：对于H型叶端气膜换热系数，由于后壁对流体的阻挡和扰动，换热系数将主要取决于主流雷偌数和吹风比。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。