查询词典 Reynold number

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 equations and ...

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。

Considering the two facts mentioned above, the best tilt angle is 2. The influence of gas injected to turbulent water and total heat transfer factor in various Reynold number is investigated.

通过对燃气加热和水浴传热过程进行数值计算，考察了喷射气体在不同雷诺数下对水浴湍流以及对总传热系数的影响。

In this work, Large Eddy Simulation and standard k-εturbulence model were employed separately to simulate a round and a elliptic turbulent jet in cross flow with the Reynold number of 16600. The numerical results of the trajectory show a good agreement with the previous experimental data.

在空气分级和煤粉再燃技术中，OFA射流和再燃射流的穿透深度，以及与主烟气之间的混合扩散情况是脱硝率的重要影响因素，对这两股射流的流动规律进行研究是很有必要的，OFA射流和再燃射流都属于典型的横流中的射流(JICF：jet in cross flow)。

The paper expresses aerodynamic optimization design of lower Reynold number high-lift airfoils using genetic algorithm,wind-tunnel experimental of design airfoil tests correctness of design.

利用遗传算法进行了低雷诺数高升力翼型的气动优化设计，并利用风洞实验检查了设计的正确性。

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。

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。

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。