雷诺应力

单室火灾中浮力修正的雷诺应力模型

RSM With Modifications of Buoyancy Applied to a Room Fire

本文采用雷诺应力模型对某带双层风幕的立式超市陈列柜的流场和温度场进行了仿真计算和实验验证。

The velocity field and temperature field of the display case are simulated with the RSM ( Reynolds Stress Model ) and verified by experimental results .

中等Reynolds数线性剪切泡状流的液相雷诺应力

Liquid Reynolds stress in linear shear bubbly flow with intermediate Reynolds numbers

本文基于理论分析和对标准K－ε两方程湍流模型数值模拟结果的分析，在标准K－ε两方程模型的雷诺应力表达式中加入高阶非线性项；

In this paper , based on theoretical and numerical analyses , a new nonlinear K ε two equation turbulence model is developed .

核型公式是：K.，雷诺应力（？）

RENAULT The karyotype formulae were as follows : K.

本文用双通道热线风速仪对低压下V形火焰稳定器后回流区流动特性进行了实验研究，获得了局部平均速度、素流强度、雷诺应力等参数的分布情况。

By using a constant-temperature-type hot-wire anemometer , the flow characteristics of the recirculating region behind the Vee-gutter flame-holder were investigated experimentally at sub-atmosphere .

实验中分别考察了肋条参数对减阻的影响，使用X型热线风速仪研究了雷诺应力的型态。

The experiment investigates the effects of ribbon parameters on drag reduction , and the research of Reynolds stress profiles is made using the X-configuration hot-wire anemometer .

使用FLUENT软件中的多相流欧拉分析方法，结合雷诺应力湍流模型，实现单锥型旋流器内油水分离过程的三维数值模拟并预测其分离效率。

A three-dimensional oil-water 2-phase turbulent flow and separation process in a single-cone hydrocyclone is numerically simulated using FLUENT software .

由于颗粒的Stokes阻力使雷诺应力的峰值减小；

As the λ increases , the peak of the Reynolds stress decreases due to the Stokes drag on the particles .

应用CFD计算软件，采用雷诺应力模型对液-液旋流分离管内的单相强旋流场进行数值模拟。

Single-phase strong swirling turbulent flow field in liquid-liquid hydrocyclon has been numerical simulated with CFD software and Reynolds stress equation model ( RSM ) .

从油水分离旋流器流场分析的基本理论出发，采用LRR雷诺应力湍流模型，应用SIMPLE算法，对其内部流场进行了数值模拟。

The internal flow field of hydrocyclone is simulated using LRR Reynolds stress model , applying SIMPLE arithmetic and basing on basic theory of hydrocyclone .

对近壁区主流速度、雷诺应力的计算，MAKE模型比SKE模型、AKE模型有进一步的改善.证明MAKE模型预测有曲率影响的湍流流动行之有效。

The MAKE model is better than the other two models in predicting the main flow velocity of wall and Reynolds stress in the curvature duct .

对于湍流模型的选择，一般的工程应用中，建议在初步设计阶段选择RNGκ-ε湍流模型，而在最终设计阶段采用雷诺应力模型。

Finally , guidelines are suggested for reasonable design and suitable choice of turbulence model .

针对Y型明渠交汇口的水流特性，应用水深平均-雷诺应力模型，采用交错网格有限体积法离散控制方程以及SIMPLE算法，求解交汇水流的水深-速度场。

Considering characteristics of the flow at Y-shaped open-channel junction , the finite volume method on staggered grids is used in a depth-averaged Reynolds stress model to discrete the control equations and SIMPLE algorithm so as to obtain the depth-velocity fields .

采用雷诺应力模型CFD数值模拟方法，对油水分离器内的流动机理和分散油相的流动特点及处理方法进行研究。

Based on the Reynolds stress model CFD numerical simulation method , both flow mechanism and flow characteristics of dispersed oil phase in oil-water separation hydrocyclone were studied .

从雷诺应力模型出发，通过求解雷诺平均N-S方程组获得三维湍流流场的数值解。

Based on the Reynolds Stress Model , the three-dimensional flow field was numerically simulated using the Reynolds averaged N-S system equations .

应用了由连续性方程、雷诺应力平均Navier-Stokes方程、紊动能k方程和紊动能耗散ε方程组成的封闭方程组作为泵段及泵装置内部三维湍流流动的控制方程。

Control equations of numerical simulation include continuity equation and Reynolds Navier-Stokes equation with standard k ? ε turbulent model . The Finite-Volume-Method is utilized for discretization of the control equations .

PDF方程中所需的平均密度、平均速度和压力由有限体积法提供，并将用MonteCarlo方法求出的雷诺应力、化学反应源项和比热比传递给有限体积法。

The Monte Carlo method is fed with the mean density , mean velocity and pressure by finite-volume method and provides all turbulence quantities and the chemical source terms in turn .

用修正后的模型计算出的平均速度分布、均方根速度的分布以及雷诺应力的分布，均与直接数值模拟（DNS）的结果吻合较好。

The mean velocity profiles , the RMS ( root-mean-square ) velocity profiles and Reynolds stress profiles calculated by the modified model are consistent with the results of DNS .

KIVA程序网格生成算法的改进及雷诺应力模型计算

The improvement of mesh generation method in Kiva code and the application of Reynolds stress turbulent models

文章采用雷诺应力湍流模型和拉格朗日多相流模型，对波纹板除雾器单通道内的流场进行了全面的计算流体力学（CFD）模拟。

Based on the Reynolds Stress model and Lagrangian multiphase model , the 2-D two phase flow field in a channel of chevron mist eliminator is simulated using computational fluid dynamic ( CFD ) method .

本研究以实验数据为依托，利用CFD方法对描述液体流动的九种湍流模型进行了计算与对比，发现LRR雷诺应力模型的计算精确度要高于其他八种湍流模型。

In this paper , based on the results of the separation experiment , analyzed nine turbulence models discovered LRR Reynolds Stress model is the best for this problem .

CGT区域内雷诺应力与平均速度梯度呈非线性关系。

In the CGT region , the relation between turbulent Reynolds stress and mean velocity gradient is nonlinear .

用LDV测量液相时均速度、湍动速度和雷诺应力，用PIV测量含气率和气泡运动速度。

The velocity , turbulent intensity , and Reynolds stress of the liquid was measured with LDV , while the hold up , velocity of gas were measured with PIV .

针对分离器内部的复杂的三维强旋转、气-固两相湍流运动，采用雷诺应力模型（SSG），利用贴体网格技术，模拟计算了分离器内部流动，并将计算结果与实验数据进行分析、比较。

The three-dimensional complex multiphase turbulent flow in gas-solids cyclone separators was simulated using the differential Reynolds stress equation models ( DSM ) .

基于平均N-S方程、采用雷诺应力微分模型、非结构化网格技术，对轴流转桨式水轮机转轮轮缘间隙的三维湍流流动进行数值模拟。

Based on the average N-S equation , adopting Reynolds stress differential models and unstructured mesh technology , numerical simulation is performed on the 3D turbulent flow of Kaplan turbine 's flange clearance .

为了研究水力旋流器用于油水分离的复杂情况，使用FLUENT软件中的多相流欧拉分析方法，结合雷诺应力湍流模型对单锥式旋流器的内部流场进行了数值模拟。

To study the complex flow in the hydrocyclone for oil-water separation , the inner flow field in the single-cone hydrocyclone is numerically simulated using Fluent software . Eulerian multiphase flow model and Reynolds-stress turbulent model are both applied to this simulation .

文中利用Fluent软件，将多相流欧拉分析方法与各向异性的雷诺应力湍流模型相结合，实现了水力旋流器内油水分离过程的三维数值模拟并预测了分离效率。

To solve this problem , this paper develops a 3D numerical simulation of the oil-water separation in a hydrocyclone by using the Fluent software and by combining the Eulerian multiphase-flow model with the anisotropic Reynolds-stress turbulence model , thus evaluating the corresponding separation efficiency .

为研究湿度对燃烧特性的影响，采用湍流雷诺应力模型和层流小火焰模型，对湿空气透平（HAT）循环燃气轮机带有旋流器的燃烧室内甲烷扩散燃烧过程进行了数值模拟。

A turbulent Reynolds stress model and a laminar small flame model are used to study the influence of humidity on combustion characteristics . A numerical simulation was conducted of a methane diffusion-combustion process in the swirler-equipped combustor of a humid air turbine ( HAT ) cycle gas turbine .

利用CFD软件，采用雷诺应力模型分别计算了300型和250型水力旋流除砂器的内流场，得到了2种水力旋流除砂器的轴向、径向、切向速度及压强的分布曲线。

Reynolds stress model ( DSM ) is used to calculate the internal flow fields for Model 300 and Model 250 hydrocyclones respectively by using CFD software . The axial , radial and tangent velocities and a curve of intensity distribution of 2 kinds of hydrocyclones are obtained .