渗流速度

进一步的变动参数比较分析表明：Langmuir等温线方程中的参数B、压实粘土衬里的渗透性及地下水渗流速度对污染物运移过程具有显著的影响。

Both the parameter B in Langmuir isotherm equation and hydraulic conductivity of compacted clay liners as well as seepage velocity of groundwater play significant roles in governing contaminant transport through porous media .

利用土槽试验和MODFLOW模型模拟研究了不同岸坡倾角下地下水入湖时在入湖交界面处的渗流速度分布规律。

The seepage velocity through lakeshore and lake bottom interfaces under different lakeshore inclinations were discussed by experiments in soil tank and model simulations using MODFLOW .

地下水在多孔土层中渗流速度的达西（Darcy）公式是用实验方法得到的。该公式适用于均质各向同性土层中的海流计算，但对各向异性土层中的渗流计算，则不能直接采用。

The Darcy formula of the velocity of the infiltration flow of ground water through porous soil is obtained by means of experimental methods .

利用Fluent软件对综放工作面采空区流场进行数值模拟，得出采空区内部渗流速度及CO浓度的分布规律，进而得出了采空区CO运移规律。

After that , distribution of CO concentration and the velocity of air flow in the gob are calculated by simulating the flow field using Fluent software numerically . Furthermore the migration law of CO in the gob is also obtained .

地下水在各向异性土层中的渗流速度

The velocity of the infiltration flow of ground water through anisotropic soil

采用控制应力流变仪研究了交联聚合物凝胶的屈服应力与凝胶强度的关系，并考察了凝胶的抗剪切性能，尤其是与油藏渗流速度相当的剪切速率下的凝胶的粘度保持率。

The yield stress and shear-resistant properties of crosslinking polymer gel were studied by rheological measurement .

其次，对于同一粒径的颗粒，渗流速度越大，流出液中颗粒的浓度峰值越大。

The peak concentration of effluent increases with the increasing seepage velocity for the same particle size .

待钻井地层孔隙流体渗流速度预测模型及应用

Forecasting Model on Darcy Velocity of Formation Pore Fluid of Impending Drilling Well and Its Field Application

密井网条件下地层孔隙压力及孔隙流体渗流速度的计算与控制技术

Techniques for Calculating and Controlling Formation Pore Pressure and Pore Fluid Velocity under Tight Well Pattern Condition

同一块岩心在初始稳定渗流速度大的情况下，岩心的启动压力梯度小。

The same rock core has a lower threshold pressure gradient when larger steady threshold seepage velocities occur .

发生非线性流的渗流速度为0.136m/d。

The non-linear flowing occurs when the flowing velocity is less than 0 . 136 m per day .

研究表明，在渗流速度较大时应对达西定律加以修正。

It is proved through experimental research that the Darcy law should be revised to adapt to high seepage velocity .

而渗流速度与渗透水压力呈线性关系，符合宏观尺度渗流的达西定律。

The relation between the specific discharges and seepage pressures are linear and consistent with the Darcy law in macro-scale .

模拟结果表明，渗流速度高于临界流速才引起冲刷出砂；

The simulation shows that sanding will occur when the seepage velocity of medium is over the critical velocity of fluid .

增大入口渗流速度以及减小出料速度，将导致物料温度沿导管慢速下降，热渗透深度扩大，热渗透作用区域内的物料温度水平提高。

The thermal penetration depth moves with the interrupting time along the pipe and tends to increase with the seepage flow velocity .

通过分析理论解，从中得出稳态降深方程、稳态渗流速度方程、准稳态时间方程和理想井间距方程。

Equations of steady drawdown , seepage velocity , quasi steady time and ideal well distance were obtained through analytic seepage equation .

其次，探究了渗流速度增量和颗粒粒径对沉积颗粒再释放特性的影响。

Besides , the effects of increment of seepage velocity and particle size on the release of deposition particle have been studied .

声场还可以使出油井防垢、除垢，降低原油粘度，提高其渗流速度。

The acoustic field can prevent and remove the scale , lower the viscosity of oil , enhance the seepage flow velocity .

此外，对渗流速度的定义进行了改正和完善，并证明了多相流中真实速度与渗流速度的关系。

In addition , the definition of flowing velocity are modified and perfected , testifying the relationship between real velocity and flowing velocity .

通过一系列的实验研究，证明了脱附用水的渗流速度对脱附性能有一定的影响。

Comparison were made among different desorption methods to prove that the permeating rate of desorbing water will affect the desorption performance to a consi .

结果表明，虽然随渗流速度增加，扩散系数增加，但对浓度分布几乎没有影响；而且在精度要求不高，物理扩散较小时，数值稳定性好的对流方程的数值弥散可以代替物理扩散。

The results show that the velocity almost has no effect on concentration distribution and generally the numerical dispersion can be substituted for physical diffusion .

对教材中渗流速度的定义进行了修正，并将质量密度这一概念推广到多孔介质中，借助于流体力学中的普遍守恒原理得到了广义的连续性方程。

The concept of the mass density is extended from non-porous media to porous media , so that the general mass conservation equation is obtained .

当渗流速度高于某一临界值后，由拉伸应力产生的附加压降将超过剪切压降。

When flow velocity was higher than a certain critical value , pressure drop caused by extensional stress was higher than that caused by shear stress .

结果表明：瓦斯压力和轴压一定时，瓦斯渗流速度随着围压的升高逐渐降低，为二阶曲线关系；

When the gas pressure and axial compression are determined , the gas seepage speed decreases as confining pressure increasing with the relationship of second-order curve relationship .

利用差分方法离散了室内氡的三维瞬态传输方程、渗流速度方程、压差方程以及定解条件。

By means of the different method , the equations of transport of indoor radon gas , convection velocity and pressure difference and boundary conditions have been discretized .

渗透率比值与注水孔隙体积倍数或渗流速度的关系曲线均呈“S”形；

The relative curves of the ratio of transient permeability to initial permeability with the injected fluid volumes or seepage velocity are like a character " S " .

应用该计算方法和控制技术对大庆油田待钻修井地层孔隙压力和孔隙流体渗流速度进行了计算。

The methods and techniques are used to calculate the pore pressure and filtration velocity of pore fluid from the formation that workover will be conducted in Daqing Oilfield .

结果表明，随着压力分布的变化，渗流速度也有很明显的变化，其中外层孔在渗流中起主要作用；

The results showed that seepage flow velocity changed obviously with the change of pressure distribution , and the outer pores played a main role in the filtration process .

入口渗流速度、入口气体温度以及固体颗粒尺寸是影响系统反应特性的重要参数。

The velocity in porous media at entrance , gas temperature at entrance and particle size were the important parameters which influenced significantly the reactive characteristics of the porous system .

在同等压力梯度下，受地电场作用的裂隙岩块中溶浸液渗流速度随正向电场强度增加明显增大，随反向电场强度增加明显减小；

Under the same pressure gradient , the seepage velocity of leaching solution well increases with the intensity of positive electric field , and decreases with the negative electric field .