查询词典 Reynolds number

The tubes' buddle of the traditional heat exchangers is composed of tubes with same diameter, which influences its efficiency at small Reynolds number because of the big fluctuation of the heat transfer coefficient led by the flux fluctuation.

传统的换热器都是采用同径管组成换热管束，因而，在流量波动的工况下，管程传热系数波动较大，对换热器的正常运行有影响。

The correlations of the flow maldistribution characteristic with Reynolds number are obtained under different header configurations.

得到了不同封头结构的物流不均匀特性与雷诺数之间的关系式。

The comparison between Colburn factor and friction coefficient shows that Colburn analogy is not so much applicable to the drag-reducing fluid, especially for the low bulk flow Reynolds number conditions.

减阻流体柯尔本因子与摩擦系数的对比结果表明柯尔本比拟，特别是在较低流动雷诺数下有较大偏差。

By using the swirling strength method,the vortex structures excluded the effect of shear were shown clearly,and were concentrated in the coniform area of the central mixing flow field.With increasing Reynolds number,swirling strength increased and the coniform area became narrow.

利用旋涡强度法分析流场清楚地显示出排除了剪切作用的涡结构主要集中在混合层中心的锥形区域，随着Reynolds数的增大，旋涡强度的值不断增大而锥形区域不断变窄。

The critical Reynolds number decreases with countercurrent shear stress and increases with cocurrent shear stress.

切应力对表面波的稳定性作用与气流方向和液膜的流动状态相关。

By the binding of two colloidal particles in Brownian Dynamics Simulation binding, colloidal particles, Brownian dynamics simulation, the two particles, diffusion tensor, hydrodynamics, methods, low Reynolds number, aqueous solution, distance, colloidal suspensions, since correlation function, cross correlation function,...

受束缚的两个胶体粒子的布朗动力学模拟束缚，胶体粒子，布朗动力学模拟，两个粒子，扩散张量，流体力学，方法，低雷诺数，水溶液，距离，胶体悬浮系统，自相关函数，互相关函数，。。。

In addition, the deflector can increase critical Reynolds number of the aerodynamic drag coefficient graph.

安装导流罩使得气动阻力系数曲线上的临界雷诺数增大；设置薄壁式的导流罩底边和驾驶室顶面之间的间隙，可以增强导流罩的减阻效果。

The varied parameters include the Reynolds Number with values of , and , column diametrical ratio set at =5, 10, and 20, column gap at 0 , 0.01 , 0.05 , 0.075 , and 0.1 , in-flow camber at =,,,,,, and , and angle between columns at =,,, and .

在旋转控制圆柱无因次转速=0至5的情形下，改变雷诺数、圆柱直径比(=5、10、20)、圆柱间隙(=0 、0.01 、0.05 、0.075 、0.1 )、入流攻角(=0 、15 、30 、45 、60 、75 、90 )、圆柱间夹角(=30 、60 、-30 、-60 )等参数，进行数值模拟分析。

In order to probe into the anti-friction mechanism and effectiveness of turbulent zone of flexible pipe ,extensometer with high accuracy and high-frequency response characteristics is used to study the frequency variation feature of flexible pipe s outer diameter with Reynolds number.

为探讨柔性管的紊流区域减阻效果的产生机理，采用高精度高频率响应特性的应变仪对柔性管外径随雷诺数的频率变化特性进行了研究。

The comparisons between nitrogen oxides predictions and measurements were made,and the influence of Reynolds number, scalar dissipation and flamelet time on the formation of nitrogen oxides was discussed.

将氮氧化物的计算结果和实验数据进行了比较，并探讨了Reynolds数、标量耗散和火焰面时间对氮氧化物排放的影响。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。