流动系数

流动系数为0.1～1μm2·m／（mPa·s）为1d；

When the flow coefficient is 0.1 1 μ m 2 · m / ( mPa · s ), 1d is required ;

岩体粘塑性流动系数γ的反演计算

Back analysis of visco plastic flow coefficient γ of rock mass

给出了两相流中主要设计参数，如浓度C、流体流动系数Cd、物料颗粒在液体中的沉降速度vt、流体的临界速度vd等的计算公式及选用图表。

The article provided many equations and figures for calculation of main parameters in two-phases flow , such as concentration C , settling velocity of particle Vt , drag coefficient Cd , and deposite velocity Vd etc.

在此基础上，考虑现场条件，统计大港油田35口井实测资料，提出关井时间可由流动系数确定：流动系数大于1μm2·m／（mPa·s）为5～8h；

Actually measured data in 35 wells were gathered statistically and on this base it is suggested that when flow coefficient is larger than 1 μ m 2 · m / ( mPa · s ), well shut in time will be 5 8h ;

对粘塑性流动系数γ的可辨识性进行了讨论，表明流动系数γ为可辨识参数；

The identifiability of visco plastic flow coefficient γ was discussed .

流动系数是评价产能的一个重要指标。

Flow coefficient is an important index for productivity evaluation .

考虑横向流动系数的热轧带钢比例凸度分配模型

Calculation of Unit Crown Distribution of Hot Rolled Strip Considering Transverse Flow Coefficient

从而提供了求得流动系数、裂缝半径及井筒存储等参数的公式。

Furthermore , formulas describing flow coefficient , fracture radius , wellbore storage factor are presented .

枝晶臂游离随流动系数的不同可以有颈缩－熔断和颈缩－折断两种模式。

There are two kinds of the model of the dendritic arm detachment : necking melting and necking breaking ;

提出了一种新的流动系数取值方法，能够准确描述停注过程中毛管力作用引起的吸渗现象。

A new method is established to determine flow coefficient which can well describe the imbibition phenomenon due to the action of capillary force .

根据低渗透裂缝油藏渗吸法采油渗流机理，建立了双孔双渗渗吸法采油数学模型，并给出了数值解法和流动系数的取值方法。

Based on mechanism of imbibition oil recovery in low permeability fractured reservoir , a mathematical model of dual porosity and dual-permibility imbibition oil recovery is established , and numerical solution method and the acquiring-value method of flow coefficient are presented .

其中，在产量递减率指标描述过程中，分别计算出不同影响因素的变化系数，得出了影响产量递减的关键因素为：井网密度变化、生产压差变化、流动系数变化和含水系数变化。

In addition , in the process of describing production declining rate , the variation coefficient among different influenced factors shows that the key factors are the changes of well spacing density , production pressure difference , flow coefficient and water coefficient .

在简化试油条件的情况下，对于常规非自喷井可以通过测不同时间液面恢复下的井底压力变化，应用段塞流试井解释理论，求得表皮系数、地层流动系数以及外推地层压力。

In this paper , under the simplified production test condition , the formation parameters of regular non flowing well ( skin factor , formation fluid factor and extrapolate formation pressure ) are solved used bottom pressure test at different time and slug flow well test interpretation .

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 .

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 .

根据动量平衡原理建立了多管气升式环流反应器（MALR）中液体速度的理论关系式，给出了流动阻力系数的计算方法；

A correlation of liquid circulation rate in a multi-tube air-lift loop reactor ( MALR ) was established on the basis of the momentum balance , in which a new method for the determination of the overall frictional-loss coefficient in air-water system was developed .

同时，通过实验还获得了流动阻力系数。

Furthermore , the hydraulic drag coefficients are also presented .

自然循环条件下，喷射泵流动阻力系数影响压水堆一回路过渡过程时间及自然循环流量的大小。

The flow resistance coefficient affects transient time and natural circulation flow under natural circulation .

在此基础上，通过测量旋流式气动阀正反向流动阻力系数，研究了旋流式气动阀的工作机理。

Its operational mechanism is investigated by measuring its forward and reverse flow drag coefficients .

研究结果表明，流动性系数较大时，最优控制策略接近于线性策略；

The optimal strategy approximates to the linear strategy if the liquidity coefficient is small enough .

在10000～90000的高雷诺数范围内，测量了流动摩擦系数、局部和平均对流换热系数。

In high Reynolds number range of 10,000 ~ 90,000 , the flow friction factor , local and average convection heat transfer coefficients were determined .

介绍了靶式流量传感器的工作原理，对小流量流动流量系数的变化提出了修正方法并研制了智能型小流量测量的靶式流量计。

The principle of target flow-meter was introduced and design the intelligent small-flow target flow meter based on a modification method of flow coefficient shifted with small-flow .

初步建立扩散/收缩流道结构的数学模型，讨论了结构参数的选取原则及相应的流动阻尼系数的计算方法。

First the mathematical model of the diffuser / nozzle was built , the principle of choosing the structure parameters and corresponding computation methods of the damping coefficient were discussed .

同时变冲角性能得到极大改善，在±10°冲角范围内总流动损失系数变化不超20%，可以肯定该叶片改型设计是成功的。

The change of total flow loss is less 20 % between-10 ° and 10 ° incidence angle . It is sure that the modification design of blade cascade is successful .

最优策略对管理者的风险厌恶程度、资产波动率和流动性系数较为敏感，而对证券超额收益率敏感程度较低。

The strategy is sensitive to the manager ′ s risk tolerance , the asset volatility rate and the liquidity coefficient , but it is insensitive to the security excess return rate .

导流片出口角较大、入口和出口直段较短、圆弧半径较大时，流动损失系数较小。

While the coefficent of loss of flow becomes smaller when the outlet angle is larger , the straight section length at the inlet and outlet are smaller , and the radius of arc is larger .

介质粗糙的表面有利于弱凝胶滞留，流动阻力系数比较大，但同时也加剧对凝胶的剪切破坏，使流动阻力降低。

Particularly in slow injection rate weak gel detention shows very large , which makes resistance factor increase . 6 . Though coarse media favors detention of weak gel , it sharpens shear of weak gel .

采用数值模拟方法确定极性流体电黏性对于微通道内流动摩擦系数的影响，并与文献中的实验结果进行了比较。

In order to examine the electroviscous effect of polar fluids on the friction factor for the laminar flow in microchannels , the numerical investigations were conducted , and the results were compared with the experimental data available in literature .

同时，将具有代表性的新型翅片管的传热和摩擦阻力性能与传统的平直翅片管进行了比较，给出了相应的传热系数曲线、流动阻力系数曲线和实验公式。

Compared the characteristics of heat transfer and frictional resistance of the new type of finned tubes with that of traditional finned tubes , and the corresponding curves and experimental formulae of heat transfer coefficient and frictional resistance were given .

在总结实验成果基础上，提出了烟气在铸铁锅炉扩编通道中的流动阻力系数和对流换热系数的实验关联式，给出了公式的适用范围。

Based on the summing-up of experimental results the authors have proposed an experimental correlation formula for the gas flow resistance and convection heat exchange factor in a cast-iron boiler divergent-convergent channel with the applicable range of the formula being specified .