雷诺数

雷诺数对压气机特性及发动机稳定性影响的计算和分析

Effects of Reynolds Number on Compressor Performance and Engine Stability

雷诺数对涡扇发动机性能及稳定性影响

Reynolds Number Effects on Performance and Aerodynamic Stabilities of the Turbofan Engines

对不同的热负荷情况，讨论了几何参数一定的换热器N随流动雷诺数变化情况。

N versus Reynolds number Re were investigated with different heat duty .

低雷诺数下突扩管流的CFD数值计算

CFD Numerical Calculation of Sudden-expansion Pipe Flow of Low Reynolds Number

ε高雷诺数模型对三维流场进行分析，速压耦合使用SIMPLE算法。

ε high Reynolds turbulent model was used to finish these jobs , and the SIMPLE based method for coupling the velocity and pressure fields is employed which facilities and the momentum equations .

在相同雷诺数和精度要求下，W循环所需的外迭代次数较V循环少。

Secondly , the W-cycle multigrid method takes less steps of iterative procedure than the V-cycle version for the same Reynolds and accuracy request .

用格子Boltzmann方法模拟高雷诺数下的热空腔黏性流

Simulation of thermal viscous cavity flow in high Reynold number by the lattice Boltzmann method

定常Stokes问题反映在小雷诺数情况下，不可压缩粘性流体的稳定（即定常）流动。

Steady flow of incompressible viscous fluid is expressed by stationary Stokes equation at small Reynolds number .

这是由于W循环对误差的长波分量衰减得较为彻底，因而相同雷诺数下W循环所用工作单位数少于V循环所用的工作单位数；

W-cycle takes less work units than the V-cycle because of the complete elimination of the long wave error components in the process of W-cycle .

用低雷诺数NH模型模拟室内混合对流气流组织

Numerical Study of Air Distribution of Indoor Mixed Air Flow with Low Reynolds Number NH model

当雷诺数Re越过1800时，f的值明显偏离经典层流理论值。

When Re was larger than 1800 , the values of the friction factor of all the microtubes obviously deviated from the classical laminar theory values .

对于圆柱棒型规则多孔填料床，可用水力雷诺数、液相韦伯数、Bond数和无量纲流动参数来关联其气液两相流动阻力实验数据；

A correlation of flow friction factor is obtained from the experimental data by using Reynolds number , Weber number , Bond number , and the dimensionless flow parameter .

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 .

经量纲分析和圆管紊流理论分析表明流道内部流动的雷诺数Re对流道摩阻系数λ影响很小，可以忽略不计；

The results of dimension analysis and turbulent pipe flow theory showed that the Reynolds number Re had low effect on the flow path friction coefficient λ, which could be ignored .

根据计算得出的数据，拟合出了本文所研究的通道的入口雷诺数Re与平均努塞尔数Nu和入口雷诺数Re与摩擦系数f之间的关系式。

Based on the computational results , the correlation between the Nusselt number , friction factor and Reynolds number are also given .

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 .

结果表明，曲率对壁面射流的影响较强，并随着S／W的增大而增强.随着雷诺数的增大，壁面曲率的影响也有强化的趋势。

The results show that effect of wall curvature on turbulence is distinct , and enhances with increase of S / W , Reynolds number based on jet exit width .

高雷诺数流动的控制方程体系和扩散抛物化Navier-Stokes方程组的意义和用途

Significance and use of basic equation system governing high Reynolds ( re ) number flows and diffusion-parabolized navier-stokes ( dpns ) equations

高雷诺数下平面Poiseuille流稳定性渐近分析

Asymptotic Analysis of Stability Problem of Plane Poiseuille Flow for High Reynolds Number

颗粒雷诺数Rep对传热的影响程度更强于单一传热模型。

The effect of Reynolds number on temperature distribution from the coupling model is more than single model .

不可压缩粘性流体动力学方程组的Navier-Stokes方程在粘性很大，即雷诺数很小的情况下，可线性化为Stokes方程。

Stokes equation is the linearization of Navier-Stokes equation , which is the governing equation of incompressible viscous flow , with small Reynolds number .

解控制流动的低雷诺数的Stokes方程，得出阻塞液前阵面和指状气泡前阵面的位置、速度等公式。

The expressions of both positions and velocities of liquid front and bubble front were deduced by solving the Stokes equation at low Reynolds number .

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

使用计算流体力学软件FLUENT，模拟均匀来流绕固定圆柱的流动，模拟雷诺数为20,40100时的绕流流动，得到流场的流函数等值线图和速度矢量图。

Uniform flow around a mounting cylinder is simulated with the application of FLUENT software while Reynolds number is 20,40,100 . Stream function and velocity vector distributions are indicated .

静床层高度位于锥形喷动室内时，密度之比对最小喷动时的雷诺数的影响较大；高频小探头内镜超声和多层螺旋CT在胃癌术前T分期中的对比研究

And the minimal spouted Reynold was greatly affected by the ratio of densities when static bed height located in the spouted cells . High Frequency Endoscopic Ultrasound Mini Probe Versus Multislice Spiral Computed Tomography for Preoperative T-Staging of Gastric Cancer

在雷诺数和磁雷诺数确定时，Alfvèn马赫数值（MA）对耦合特性起决定性作用。

It is found that the Alfv è n Mach number , MA plays an essential role in determining the properties of the coupled instability .

PSR的换热特性和压力损失值与换热介质温度、通道宽高比以及雷诺数有关；

The heat transferring characteristics and pressure drop were related to the system temperature , pitch-to-height ratio and Reynolds number .

首先，建立波纹型换热管几何模型和数学模型，分析了管内湍流流动特性，确定了影响换热特性与流动阻力的参数，采用高雷诺数k？

First of all , sets up the geometric model and the mathematic model of corrugated pipes for transferring heat . Analyzing the turbulence characteristics in tubes and making sure the parameters those work on the heat characteristics and flow resistance .

通过实验研究得出了N2泡沫压裂液在15~45MPa范围内摩擦阻力系数和广义雷诺数之间的计算关联式，其在本文实验工况下的平均计算误差为10.2%。

The relational expression between the frictional resistance factor and generalized Reynolds number is obtained by the experiments , and whose average calculation error is 10.2 % under the experimental condition .

二阶ETG有限元方法在低雷诺数流动模拟中的应用

Application of ETG finite element method in numerical simulation of incompressible viscous flow of low Reynolds number