查询词典 Reynolds

When the Reynolds number is high, the backward flow will possibly appear at the bottom of the heat transfer surface of the blade leading, forming a strong heat transfer region.

在高雷诺数时，很有可能在叶片前缘换热面的底部出现流体倒流现象，使得叶片前缘底部出现强换热区。

The experimental results are consistent with the results of double Reynolds boundary condition of numerical model.

实验结果表明：油膜形成和破裂边界的变化趋势与采用双雷诺边界条件计算的结果相比是比较一致的。

Another feature of HEDDTB is that its tubes' buddle is composed of tubes with different diameters, which lead to a smaller fluctuation of heat transfer coefficient in the condition of fluctuating flux than that of the heat exchanger with tubes that has the same diameter in the case of low Reynolds number.

异径管束换热器的换热管束由直径不同的管子组成，这种换热管束在低雷诺数下传热系数随流量的波动相对同径管束而言较小，因此异径管束有一定的抗传热系数波动的性能，这使得换热器在流量波动的工况下工作性能稳定。

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 central angle of the impingement fluid separated from the target surface became larger with the increase of jet Reynolds. And the separating angle also increased with the increasing ratio of the jet distance to the diameter of the jet hole, while the range of induced vortex became smaller.

试验中发现随着冲击雷诺数的增加，冲击气流与壁面分离处对应的圆心角增大，分离推迟；随着相对冲击间距值的增加，气流与壁面分离处对应的圆心角越来越大，相对于受限空间的大小，诱导涡的范围越来越小。

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。

That is, both numerical simulation and model experiments are complemental to each other. The main point of the thesis are as following:1. Vertical pipe inlet/outlet is simplified as an axisymmetric model in the research, and flow field is simulated with second-moment Reynolds stress model and VOF.

本文的主要工作有： 1、将竖井式进／出水口概化为轴对称模型，应用雷诺应力模型和自由面常采用的VOF法，对抽水和发电工况下竖井扩散段、孔口、防涡梁下的水流流动特性进行了数值模拟。

The calculation was based on the continuity equation and Reynolds-averaged Navier-Stokes equation.

计算基于连续方程和雷诺时均N-S方程，采用标准的κ-ε湍流模型和SIMPLEC算法。

The turbulent diffusion is found to have important effects on the structure of the solar convection zone.

借助日震学的观测结果，我们在太阳内部测定了Reynolds应力模型中涉及到的自由参数的取值情况。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。