雷诺数

Furthermore, the non-linear global stiffness matrix is updated in the time domain as the riser deforms.7, Potential relationship between the freely vibration and the forced oscillation has been investigated and a theory model is successfully constructed.

该理论模型可同时考虑到雷诺数和质量阻尼比对横向振幅幅值的影响，同时也再次证明雷诺数是影响涡激振动横向振幅的一个重要参数。

The results show that:(1) The mean drag and lift coefficients of box shape bridge deck section have considerable Reynolds number effect;(2) the ratio of width to height affects on Reynold.

在较大的雷诺数范围内测量了不同宽高比箱形桥梁断面的三分力系数，研究了三分力系数雷诺数效应以及宽高比对断面三分力系数雷诺数效应的影响。

The main parameter of the fluid mechanics is Reynolds count, the basic condition of sludge dispersing Reynolds count is in onflow.

管出口流体力学的主要参数是雷诺数，分散污泥的基本条件是管出口的雷诺数处于湍流状态，雷诺数大于5000后污泥流动状态更稳定。

The effects of small grains set on the surface of prolate spheroid on SFL were also observed and analysed. In laminar flow, Re=1. 4×10〓, the shape of separation line is affected prominently by the nearby grains.

层流状态下，雷诺数为1.4×10〓时，分离线附近的颗粒状突起会显著影响分离线的形状，当雷诺数减为0.9×10〓时，颗粒对分离线只有微弱的影响。

The velocity vectors of the flow field are also calculated. Finally, on the basis of experimental data and dimensional analysis, the effects of Reynold number and Froude number on the reattachment length decreases as Re or Fr increases, and the regression formulas are following

最后将实验数据及参数加以无因次分析，探讨雷诺数及福禄数对复合长度之影响，发现无因次复合长度随著雷诺数及福禄数之增加而减短，其回归公式如下

A test model of four co-rotating disks was developed as the simplified version of a typical internal cooling system of a gas turbine compressor. The investigation was on the distribution of local heat transfer coefficient and the averaged nusselt number of the downstream main disk. Experimental analysis may lead to following conclusions: the distribution is not of monotony and multi-peaks were found along the disk surface,Nu increases with the decrease of the rotational reynold number Re(subscript w,Nu increases with the axial reynold number and the grasholf number.

针对航空发动机多级压气机盘腔的冷却问题，对具有轴向通流的三腔模型进行了系统的研究，通过对局部换热特性与平均换热特性的分析，可以表征旋转盘的热应力水平和相对冷却效果，结果表明表征旋转盘热应力水平的局部换热特性在旋转盘的半径上呈多峰分布，表征相对冷却效果的平均换热特性与旋转雷诺数Re、进气雷诺数Re以及格拉晓夫数Gr有关，当Re及Gr增加时，平均努塞尔数Nu随之增加，而Re的增加使之减小。

The method presented in this paper give good results in both low and high Reynolds number.

本文中提出的算法在求解高雷诺数和低雷诺数问题时都给出了比较满意的结果。

Initially this case will be run with a Reynolds number of 10, where the Reynolds number is defined as

最初，这种情况下，将运行例子中雷诺数为10，其中雷诺数定义为

The rms of fluctuating velocity, as well as the mean velocity profiles, for different Reynolds number has also been studied.

本文还对不同雷诺数下均方根速度的分布进行了研究；给出了不同雷诺数的平均速度剖面。

Results showed that the overland flow pattern has close relationship with the grass cover and water inflow rate, it changed from the laminar and tranquil flow to the transition flow and tranquil flow for the grass-covered sloping segment with increasing water inflow rate, but it was almost transition flow and tranquil or rapid flow for the sloping segment without grass cover.

结果表明，坡面流流态与放水流量和草被覆盖关系密切，随流量的增大草被覆盖断面坡面流流态由层流－缓流转变为过渡流－缓流，而无草覆盖断面的流态几乎都处于过渡流－缓流或急流状态；沟坡径流大都属于过渡流－急流状态，试验过程中，草被覆盖断面的径流雷诺数和弗汝德数变化很小，无草被覆盖断面径流的雷诺数呈逐渐增加趋势，而弗汝德数呈逐渐减小的变化趋势。

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。