达西定律,Darcy"s law
1)Darcy"s law达西定律
1.The flow in low-perm reservoirs docs not observe the Darcy"s Law.低渗透油气层由于存在启动压力梯度,渗流规律不符合达西定律,而现今实验室处理相对渗透率曲线的JBN方法是建立在达西定律基础上的,没有考虑启动压力梯度的影响。
2.GeneralizedDarcy"s law was first derived from the study of fluid flow through a solid-fluid mixture,and the saturated permeability tensor of a preform could be predicted by studying its unit cell under periodic boundary conditions.首先,采用均匀化理论分析了流体在多孔介质内的流动问题,推导出广义达西定律,证明以施加周期性边界条件的单胞为研究对象,可以预测预成型体的渗透率张量,并以单向纤维织物为例,对该方法进行了验证。
3.Method\ The multi-dimensionally definite flow and retention characteristics of low-permeability reservoirs is studied by usingDarcy"s law.方法应用达西定律 ,研究低渗透油藏中多维定常渗流特征。
英文短句/例句
1.Practical Application Edified from Illustrating Darcy-theory on Seepage Flow in a Project;达西定律推导中的启示在实际工程中的应用
2.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。
3.Frank-Starling law弗兰克-史达宁二氏定律
4.Distribution Rules of Hydrocarbon in the Cenozoic Erathem of Western Qaidam Basin柴达木盆地西部新生界油气分布规律
5.Nernst-Simon statement of the third law of thermodynamics热力学第三定律的能斯特－西蒙定则
6.(law) of full legal age.（法律）达到完全法定的年龄的。
7.Newton"s second law can be expressed as a differential equation.牛顿第二定律可表达成微分方程。
8.The committee reached an agreement to strike down a law requirement.委员会达成一致取消一项法律规定。
9.Something dictated by invariable physical laws.必然性由不变的自然规律决定的东西
10.Determination of Mexiletine Hydrochloride and Its Tablets by Capillary GC盐酸美西律及其片剂的毛细管GC测定
11.The Law and Society of Western Xia Dynasty--Observations Based on the Provisions on "Domestic Animals" in New Law and Rules of Tiansheng Era;西夏法律与西夏社会——基于《天盛改旧新定律令》“畜物”条文的观察
12.Thoughts on Some Legal Problems in Constructing Harmonious Society in Undeveloped Regions of Western China;西部欠发达地区构建和谐社会的法律思考
13.Discussion on the Modes and Laws of Attracting Foreign Intelligence in Western Developed Countries;西方发达国家国外智力引进模式及规律启示
14."Come, Darcy," said he, "I must have you dance.“来吧，达西，”彬格莱说，“我一定要你跳。
15.They"re due to arrive in Seattle (on) November 4th.货预定11 月4 日抵达西雅图。
16.The package never arrived at its destination.东西从未送达预定目的地
17.She has allied herself to the West to attain certain economic aspirations.她和西方联合以达到一定的经济目的。
18.The Eighth Dalai Lama and to Put down the Kuoerka to Harass Tibet;八世达赖剌嘛与平定廓尔喀侵扰西藏
相关短句/例句
darcy law达西定律
1.A permeability coefficient formula after cohsideration of initial hydraulic gradient and the formula of initial water head were put forward based on Darcy Law of cohesive soil and the continuity of stream,then errors were estimated through range of permeability coefficient,the maximal deviation and square deviation between back-calculated water head and actual water head.基于粘性土的达西定律和水流连续性原则,建立了考虑起始水力坡降时粘性土的渗透系数公式和起始水头计算公式,并通过渗透系数的极差、反算水头和实测水头的最大偏差和均方差来评价所提出的公式和规程公式的误差。
2.First of all,the traditional Darcy law was modified,and the complete effective Darcy law(model) inside the complete and effective seepage field in porous media was derived.首先,对传统的达西定律形式进行修正,提出了孔隙介质完备有效的达西定律(模型);然后,对该模型中渗透参数的特性进行了讨论和分析,得出了一些有益的结论。
3)Non-Darcy"s Law非达西定律
4)generalized Darcy"s law广义达西定律
1.The nonuniform capillary the group model is used to establish the generalized Darcy′s law and a general equation of the power law fluid and Bingham fluid flow through porous media.通过不均匀的毛细管组模型，建立了幂律型流体和宾厄姆（Ｂｉｎｇｈａｍ）流体渗流的广义达西定律和一般的渗流方程，导出幂律型流体渗流的有效渗透率和有效粘度以及宾厄姆流体启动压力梯度与流体特性参数和地层介质特性参数之间的关
5)Darcyˊs law for flow through porous media达西渗流定律
6)Darcy"s law and Fick"s law达西定律和菲克定律
延伸阅读
达西定律达西定律Darcy"slaw反映水在岩土孔隙中渗流规律的实验定律。由法国水力学家H.-P.-G.达西在1852～1855年通过大量实验得出。其表达式为式中Q为渗流量，F为过水断面，h为水头损失，L为渗流路径长度，I为水力坡度，K为渗流系数。关系式表明，水在单位时间内通过多孔介质的渗流量与渗流路径长度成反比，与过水断面面积和水头损失成正比。从水力学已知，通过某一断面的流量Q等于流速v与过水断面F的乘积，即Q＝Fv，或。据此，达西定律也可以用另一种形式表达v为渗流速度。上式表明，渗流速度与水力坡度一次方成正比。说明水力坡度与渗流速度呈线性关系，故又称线性渗流定律。达西定律适用的上限有两种看法：一种认为达西定律适用于地下水的层流运动；另一种认为并非所有地下水层流运动都能用达西定律来表述，有些地下水层流运动的情况偏离达西定律，达西定律的适应范围比层流范围小。
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