流动阻力

耐磨损、不结垢：PP管及管件内壁均匀光滑，流动阻力小并且不结垢。

Wear-resistant , non-fouling : PP pipes and fittings inwall are uniform and smooth , flow resistance is small and does not scale .

基于已知工况条件下的散热边界条件，通过模拟流场和温度场空间分布规律，3D模型可以计算机舱流动阻力特性和边界层散热情况。

Based on the known thermal boundary conditions , 3D model can calculate flow resistance characteristics and boundary heat dissipations of engine cabin by simulating the spatial distributions of flow and temperature field .

实验结果表明，被研制的GC管总传热系数比光管提高4倍多；而相应的管内侧冷却水流动阻力系数平均为光管的7倍多。

And the relevant friction factor inside the GC tube can be 7 times that of the smooth tube .

CO2低温循环中，随着温度的降低，制冷工质的粘性对管路的流动阻力损失影响不大。

In CO2 low temperature part cycle , the viscosity of CO2 refrigerant has less effect on the flow loss in pipeline as the decreasing of temperature .

建立了空气流动阻力的准则方程，即欧拉数Eu与雷诺数Re、普朗特数Pr之间的函数关系。

Dimensionless equation of air flow resistance is functional relation of Euler number , Reynolds number and Prandtl number , is set up after experimental data is analyzed .

计算结果表明：壁面的速度滑移使流动阻力随Kn数的增加而减小。计算结果表明：微环缝槽道内的摩阻系数随Kn数的增加而减小；

The predicted results show that the slip velocity near walls made the flow resistance in this microchannel decreases with increasing Kn .

由于PVC间、PVC熔体与加工机械金属表面间存在的摩擦力会降低熔体的粘性流动阻力，所以在PVC加工过程中加入润滑剂是必不可少的。

Essential lubricants are necessary in PVC processing because of the friction between the PVC , PVC melt and metal surfaces of processing machinery , which would reduce the viscosity of the melt flow resistance .

R600a在重力热管散热器中的工作实验研究管带式散热器流动阻力与传热性能分析

Research in heat transfer performance and flow resistance of corrugated automobile radiator

通过性能实验测定了方形扩散式旋风分离器的分离效率和流动阻力，用PDA系统测试并分析了方形扩散段几个不同截面的流场分布。

Experimental and PDA ( three dimensional Particle Dynamics Analyzer ) tests have been conducted on the performance and the flow field of a square diffusion cyclone separator ( a separator with an inverted conical section which has a square cross-section ) .

分析表明，尽管增大交错角θ可以有效地增强换热能力，但同时也会带来更高的流动阻力，因此在PSR设计中需要慎重选择交错角θ。

Larger cross angle 6 can make heat transfer coefficient bigger but also bring the higher pressure loss , so it must be careful to choose the cross angle 6 in designing the PSR .

在本文参数范围内，相对于光滑通道而言，带LVG的窄间隙矩形通道在适当增加流动阻力的基础上，能明显提高传热效率。

Comparing with smooth channel , the efficiency of heat transfer is increased obviously with resistance of flow increases properly within the range of this paper .

获得了霜层厚度xs、霜层密度ρf、霜层综合热导率kf及热阻rf、霜层表面温度ts以及流动阻力系数f等参数的变化规律。

The varied relations to such parameters as thickness x s of frost layer , frost density ρ f , effective thermal conductivity k f and resistance r f of frost layer , surface temperature t s of frost layer and flow friction factor f have been obtained .

线材水平连铸过程中流动阻力的计算

Calculation of fluid resistance in horizontal continuous casting of wire rod

高频蓄冷器流动阻力特性实验分析

Experimental Analysis of the Oscillating Flow Characteristics for High Frequency Regenerator

翅片管湿式空冷的换热与流动阻力性能试验研究

Research on Humid Air-cooled Fin-tube Heat Transfer and Flow Pressure Performance

带内翅片园管流动阻力的实验研究

An experimental investigation on flow drag in tube with inner fans

液体流动阻力特性可以用液阻特性指数表示。

Flowing resistance characteristic can be indicated by it 's index .

矩形微通道中流体流动阻力和换热特性实验研究

Experimental study on flow and heat transfer characteristics in rectangular microchannel

提出了减少出口段流动阻力的优化设计方案。

The option design to reduce flow resistance is proposed .

长颈管交变流动阻力特性的实验研究

Experimental study on the oscillating flow characteristic of long-neck tube

喷嘴与水平圆管的气－液两相流动阻力特性

Wall Friction Characteristics of Gas-liquid Mixture Flow through Nozzle and Horizontal Pipelines

冰浆在180°弯管内流动阻力特性的试验研究

Experimental study on flow of ice slurry in U-shaped bend

黏弹性流体在油藏孔隙模型中的流动阻力特性

Flow resistance of viscoelastic fluid through pore model of reservoir

烟气脱硫系统中热管式换热器流动阻力计算

Flow resistance calculation on heat pipe exchanger in flue gas desulphurization system

火床炉拱区流动阻力特性分析

Analysis of Gas Flow Resistance Characteristics under the Stoker Arches

全金属孔板叠层换热器流动阻力的测试

Measurement of Flow Resistance of a Completely Metallic Perforated Plate Heat Exchanger

微细圆管内气体流动阻力特性的进一步研究

Further study on the characteristics of resistance for gas flow in microtubes

同时，通过实验还获得了流动阻力系数。

Furthermore , the hydraulic drag coefficients are also presented .

流动阻力损失对斯特林热机功率和效率影响的理论分析

Analysis on Flow Resistance Effects on Stirling Heat Engine Power and Efficiency

真空排污管内多相流动阻力特征研究

Frictional Pressure Drop Characteristic of Multi-phase Flow in the Vacuum Sewage Pipes