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。
Coupled unsaturated flow in claystone has high effect on strength and stability of underground engineering.
非饱和渗流、应力耦合行为是影响粘土类工程岩体的强度和稳定性的重要因素。
The time difference equation derived from unsaturated flow equation can be approximated by Galerkin finite element or finite difference method for space coordinate derivatives.
所得的非饱和土壤水运动方程对时间的差分方程，在空间上不仅可用有限元法而且可用有限差分法处理。
In this paper, a new computational method with a mathematical model of transient flow in soil masses is proposed for solving the problem of saturated-unsaturated flow in earth DAMS.
本文提出土体非稳定渗流数学模型和新计算方法，用以计算土坝饱和-非饱和区的渗流。
Based on the mixed-form of the Richards equation and a finite difference scheme, a VBA program is developed to perform the numerical simulation of the saturated-unsaturated flow drainage experiment.
基于混合形式的Richards方程以及一种质量守恒的有限差分格式，编写了一个VBA程序以对饱和-非饱和流排水实验进行数值模拟。
Both saturated-unsaturated flow drainage experiment without the fine sand layer on the top of the coarse sand and air-water two-phase flow drainage experiment with the fine sand layer were performed.
进行了粗砂上部没有细砂层的均质砂柱的饱和-非饱和流排水实验以及粗砂上部存在细砂层的水气二相流排水实验。
In this paper, an integrated finite difference method (IFDM) for numerical analysis of transient coupled heat and moisture flow in unsaturated soils is described.
本文介绍了求解非饱和土壤中热量和水分耦合传输问题的一种数值方法——积分有限差分方法(IFDM)。
The main research content and result are as follows: 1 The two-dimensional governing equations for steady-state flow and transient flow are derived based on unsaturated soil mechanics.
本文主要的研究内容和成果如下：1在非饱和土力学的基础上推导了二维渗流控制控制方程的稳态渗流方程和瞬态渗流方程。
The forecast of unsaturated water flow has the important significance in atmosphere science, pedology, agricultural engineering, environment engineering and ground water dynamics, etc.
非饱和流动的预报在大气科学，土壤学，农业工程，环境工程和地下水动力学等方面具有重要意义。
The study of two phases flow(water and air)is a more concerned problem in unsaturated zone under infiltration condition.
降雨条件下非饱和带水-气二相流问题是目前国内外研究备受关注的问题。
Rainwater infiltration, one of main factors inducing rock slope to slip, changes distribution of seepage flow field in unsaturated zone of slope.
雨水入渗改变了岩质边坡非饱和区渗流场的分布，是引发边坡滑坡的主要因素之一。
The purpose of this method is to obtain the large-scale solution of unsaturated water flow equation with heterogeneous coefficients accurately and efficiently in a coarse-scale mesh.
为了有效地模拟跨越多个尺度的非均质多孔介质中的非饱和水流问题，本文提出一种自适应多尺度有限元方法。
But at present, the effect of seepage flow in unsaturated soils is often ignored in slope stability analysis, such as earth DAMS, masonry DAMS and dikes.
但目前，在土石坝渗流安全分析和坝坡稳定分析中较少考虑非饱和土渗流作用的影响。
Buckingham recognized the analogy between potentials in unsaturated-flow systems and in other flow systems.
汉认为在非饱和水流体系和其他水流系之间的势有相似性。
It has important meaning for the saturate-unsaturated two phase flow study in raining in rock soil engineering and hydraulic engineering.
特别是在岩土工程和水利工程中研究降雨入渗下饱和非饱和水气两相渗流具有重要意义。
The groundwater flow in unsaturated zone is a process of the two phase flow of water and gas.
非饱和带地下水运动实质上是一个水气二相渗流过程。
Based on the iterative solution of saturated-unsaturated quasi 3-d water flow model in large scale zone, a simplified model of solute transport was established.
在迭代求解区域饱和-非饱和拟三维渗流模型的基础上，建立区域溶质运移简化模型。
Based on the iterative solution of saturated-unsaturated quasi 3-d water flow model in large scale zone, a simplified model of solute transport was established.
在迭代求解区域饱和-非饱和拟三维渗流模型的基础上，建立区域溶质运移简化模型。
应用推荐