seepage velocity

Darcy 's law can be applied to unsaturated flow subject to certain restrictions on seepage velocity .

达西定律也适用于渗透速度有一定限制的非饱和水流。

It was also found that the dynamic pressure of fluid , which increased with the process velocity of fabrics , formed the resistant moment of the rollers of mangle , and that the gradient of the seepage velocity of stretching of the fabrics processed .

并且发现流体动压力是构成轧辊阻力矩的主要成分，它随织物运行速度增大而增大。还阐明前孔区内流体的渗透速度梯度是引起织物拉伸变形的原因。

Model research of heat source method by using water temperature distribution in borehole to determine seepage velocity of dyke

利用孔中温度场分布确定堤坝渗透流速的热源法模型研究

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

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。

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

研究表明，在渗流速度较大时应对达西定律加以修正。

Researches on measuring seepage velocity in the borehole of multi-aquifer

孔中测定多含水层渗透流速方法研究

The paper uses FEM to simulate the seepage velocity field for the suction assisted penetrate caissons .

利用有限元数值计算方法模拟筒型基础负压沉贯过程中的渗流场。

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

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。

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

模拟结果表明，渗流速度高于临界流速才引起冲刷出砂；

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

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。

The main contents of the dissertation are as following : On the basis of percolation theory , the mechanism between vacuum dehydration and seepage velocity were revealed .

主要研究内容如下：从渗流理论出发，揭示负压脱水对提高充填体渗流速度的机理。

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 .

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；

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 " .

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 axial seepage velocity has a great influence both inside and outside the bucket foundation , and it is the key element to study the penetration resistance and soil plug formation .

筒体轴向渗流梯度对筒壁内外的影响都较大，是进一步研究沉贯阻力和土塞形成的关键。

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 .

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 variation of seepage velocity , resistance coefficient , reservoir permeability and oil recovery in porous media of water-drive reservoir in direct current ( DC ) electric field are studied in detail .

实验研究了外加直流电场作用下水驱油藏多孔介质中的流体渗流速度、阻力系数、储层渗透率及原油采收率的变化特性。

On the other hand , according to the soil column test , the effect of seepage velocity , seepage direction , particle concentration and particle size distribution on particle transport and deposition have been studied .

另一方面，通过室内土柱试验研究了渗流速度、渗流方向、颗粒浓度以及颗粒粒径分布等对颗粒迁移和沉积特性的影响。

The hydraulic fracturing technique can increase the permeability around the wellbore , decrease the flow resistance , and raise seepage velocity . In general case , hydraulic fracturing technique is able to increase benefit .

压裂技术可以通过创建人工裂缝，增大井筒周围的渗透率，降低渗流阻力，增大渗流速度，提高效益。

The dependences of seepage velocity and bending strength on agglomerant content , forming pressure , particle diameter of the aggregate , soaking time , firing temperature and so on were discussed .

分别从外加粘结剂百分数、成型压力、骨料粒径、保温时间、烧成温度等因素对渗水砖的渗水速度和强度的影响进行了探讨。

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 .

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。

Based on the characteristics of concreting in air and in water , the paper discusses the rising seepage velocity ( > 6 mm / min ) in hole while pile excavated in place is built in highway construction .

介绍了人工挖孔灌注桩孔内地下水上升速度较快（大于6mm／min）稳定水深不大情况下，桩基采用具有陆上砼和水下砼施工特点的浇注方法；

A transient behaviour of fluid saturated standard linear viscoelastic porous medium layer was examined numerically , and the porous solid displacement , seepage velocity of the pore liquid , pore pressure and the effective stress were obtained .

数值研究了饱和标准线性粘弹性多孔介质层的动力响应，分析了固相位移、渗流速度、孔隙压力及固相有效应力等的响应特征。

Darcy formula has a higher accuracy in the Darcy flow . But with the increase of the seepage velocity , flow gradually generally becomes deviate from the linear law , the relative error between formula calculation and experimental values will gradually increase .

但随着渗透流速的增大，流动逐渐偏离线性规律，进入非达西流区，达西公式就不再适用了。

The results show that the primary harmful components would be concentrated under the following conditions : the geological structure is enclosed , the environment of strong reducing / alkalescent / full of organic matter in groundwater and groundwater seepage velocity is slow .

认为地质构造上的封闭性、强还原/弱碱性/富含有机质的水文地球化学环境、地下水运动滞缓是盆地地下水中多种原生有害组分富集的基本条件。

The most significant factors include the seepage velocity and sorption property of clay liner , while both thickness of clay liner and seepage velocity of aquifer are the secondary important factors and cannot be overlooked in the design of countermeasures against permeability of solid wastes .

粘土垫层渗透速度及其吸附性是控制污染物运移过程的最重要因素，同时，粘土垫层厚度和含水层渗流速度的影响也不容忽略。

A mathematical model describing the mass transfer in a cylindrical tube for laminar flow with low wall - seepage velocity is presented . It is an extension of Graetz problems in heat and mass transfer to the situation for two-dimensional laminar flow and K_2 < 0 in a duct .

提出了具有低渗流壁圆管中对流传质的数学模型，将传热传质的经典Graetz问题扩展到圆管中K2<0情况下的二维层流传质问题，并采用分离变量法进行了解析求解。

Pore water pressure tends to decrease for the first time mining seepage maximum velocity decreasing after mining .

孔隙水压有减小的趋势，首次开采时渗流流速最大，以后开采时不断减小。

By means of this model the horizontal seepage flow velocity can be measured even if the vertical flow exists .

应用广义示踪剂稀释模型可以在存在垂向流的条件下测定水平渗透流速，并对各种情况下误差产生的原因进行了详细的讨论。

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

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

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。