临界雷诺数

24棱柱体的临界雷诺数只有圆柱体的三分之一左右。

Critical Reynolds number of prism with 24 edges is about 1 / 3 of that of the circular cylinder .

对液膜破裂的条件进行了实验研究，得出了无量纲热通量B与临界雷诺数的关系式。

By experimental investigation to the break of liquid film , we proved that the relational expression between non-dimensional heat flux B and critical Reynolds number .

由于高Pr数流体在肋叉排三维内肋管中的临界雷诺数较低，工程设计时容易实现使流型处在换热系数较高的湍流区。

Which is helpful for the engineering design to make the fluid flow in the turbulent zone and improve the heat transfer co-efficient .

文中还提出了关于涡轮流量计临界雷诺数Re（c1）的新概念。

A new concept about the critical Reynolds number of turbine flowmeters is also proposed in this paper .

超临界雷诺数下Spar平台大直径柱体绕流的三维数值模拟

Three-Dimensional Numerical Simulations of the Viscous Flow Past a Large Diameter Cylinder of the Spar Platform under Supercritical Reynolds Number

据此可确定最早分离的地方及对应的临界雷诺数以及对不同方位角分离点和再附点依赖于雷诺数Re的曲线。

From this equation the earliest separated point and corresponding critical Reynolds number are obtained , and the relation between the position of separation and reattachment as well as Reynolds number Re for the different azimuthal angle is revealed .

对于平行流的托尔明&施里希廷（Tollmien-Schlichting，T-S）波的线性稳定性，采用谱方法求解平面Poiseuille流的Orr-Sommerfeld方程（OSE），得到了精确的临界雷诺数；

Expansions in orthogonal functions is used to solve the Orr-Sommerfeld equation ( OSE ) in studies of the linear stability of parallel flow . For the plane Poiseuille flow the critical Reynold number is given accurately .

水力光滑圆管临界雷诺数的确定

The Determination on the Critical Reynolds Number of the Smooth Pipe

低速非达西流临界雷诺数实验研究

The Experimental Study of Critical Reynolds Number on Low-Velocity Non-Darcy Flow

超临界雷诺数下圆柱分离旋涡运动的数值研究

Numerical Study on Separated Vortex Motion around a Circular Cylinder

经试验数据验证，新计算模型确定的临界雷诺数与试验点符合很好。

It is proved that the new equation accords with the experimental data .

前体非对称涡流动临界雷诺数效应及分区特性

The effect of critical Reynolds number and zonal characteristics on asymmetric vortices at forebody

对一定几何参数的管束，存在一临界雷诺数Recr。

A critical Reynolds number Recr is found when the geometry of tube banks is given .

迷宫式流道内部流体流动的雷诺数Re为105～930，层流和紊流的流态转捩的临界雷诺数比常规尺度流道的值要小，低于255。

The critical Reynolds number for flow transition from laminar flow to turbulent flow is 255 .

判别非牛顿流体在偏心环空中流动状态的区域临界雷诺数

Local critical Reynolds number for predicting the flow states of non-Newtonian fluids through an eccentric annulus

临界雷诺数区串列圆柱在均匀流中响应实验研究二、末日意识

Experimental Research on the Vortex-Induced Vibration of Two Tandem Circular Cylinders Subjected to Uniform Crossflow at High Reynolds Number

流体化工热力学数据焓、熵、火用的计算中浓纸浆流体化过程的数学模拟及临界雷诺数

Calculation of liquids ′ thermodynamic parameters enthalpy , entropy and exergy Study on the Fluidized Charaters of Medium-Consistency Pulp Suspensions

临界雷诺数与泰勒涡没有直接联系.同时还表明，不同的压力梯度下有不同的临界雷诺数。

And the critical Reynolds number does not relate directly to Taylor vortices , but is different with different pressure gradients .

研究旨在确定微管道内流动从层流到湍流转捩的临界雷诺数。

This research is aimed at determining the critical Reynolds number of the transition from laminar flow to turbulent in the microtube .

滤除泰勒涡的同心环隙科特流临界雷诺数的实验确定

The Experimental Determination of the Critical Reynolds Number of the Couette Flow Between Two Concentric Cylinders in Which the Taylor Vortices are Filtrated

其临界雷诺数的大小与相对肋高、相对肋宽、相对肋轴向间距和相对肋周向间距等参数有关。

The relative fin height , relative fin width , relative fin-axial-pitch and relative fin-circular-pitch have an effect on the transitive Reynolds number .

因此如何准确地确定动静压滑动轴承的临界雷诺数是今后研究的一个重要问题。

As for a hybrid journal bearing the accurate determination of the critical Reynolds number is a main problem being researched in the future .

在长波解情况下，得到了临界雷诺数的近似表示，并分析了屈服应力对流动稳定性的影响。

The critical Reynolds number is , given in the case of long waves , and the effect of yield stress on stability is analysed .

首先计算了实验模型翼型气动特性与雷诺数的变化规律，确定临界雷诺数和实验参数。

First , calculating the aerodynamic characteristics of the variation with Reynolds number to determine the critical Reynolds number and the experimental parameters of wind turbine .

流动实验结果表明，层流向湍流转捩的临界雷诺数随管径减小而减小。

The result of the flow experiment shows that the critical Re number ( from laminar to turbulence ) decreased when the diameter of the tube becomes smaller .

通过理论计算，在整个充型过程中，铝合金与镁合金熔液的充填速度均低于临界雷诺数Re，完全处于层流流动状态。

Through theoretical calculation , during the entire filling process , the velocity of aluminum alloy and magnesium alloy is lower than Re , completely in laminar flow .

根据实验结果，建立了启动压力梯度与渗透率的相关曲线，得出了某一地区的临界雷诺数；

Based on the experiment results , paper plots the relationship cure between threshold pressure gradient and permeability , and gets the critical Reynolds ' number of a certain region ;

详细分析了管流湍流人口长度的影响因素，提出以临界雷诺数为基础变量的新湍流入口长度经验公式。

The factors on the turbulent entrance length were analysed , based on the variable Recr , a new empirical formula was developed for the turbulent entrance length in a pipe flow .

研究表明，束缚水饱和度下油驱和残余油饱和度下水驱低速非达西的临界雷诺数不同，也就是说，驱替与被驱替介质不同，产生低速非达西的临界雷诺数不一样。

The study shows the different Reynolds numbers mean that the different critical Reynolds numbers of low-velocity non-Darcy flow under these two situations are resulted from different media for displacing and being displaced .

研究发现，在本文条件下，波纹管内流动从层流发展到湍流的临界雷诺数远小于传统光滑圆管内的临界雷诺数，约在800~1000左右；

The critical Reynolds Number for the transition from laminar to turbulent flow in corrugated tubes was found to be about 800 to 1000 , which is much lower than that observed in a traditional straight tube .