Buckley–Leverett_equationBuckley–Leverett equationDisplacement
seepage;numericalequationsimulation;two-phaseseepage;Buckley-Leverett0引言控制方程,并用伽辽金有限元法和有限差分法加以离散,给出了数值解。在岩土工程界,饱和-非饱和渗流问题一直是研究的热点问题。当前在考虑饱和-非饱和渗流时,主要是解决岩土体中水的饱和度SW与空隙压力P(在岩土工程中一般指负水头)以及相对渗透率...
内容提示: TPG4150 Reservoir Recovery Techniques 2009 Hand-out note 4: Buckley-Leverett Analysis Norwegian University of Science and Technology Department of Petroleum Engineering and Applied Geophysics Professor Jon Kleppe 09.09.09 1/1 BUCKLEY-LEVERETT ANALYSIS Derivation of the fractional flow equation ...
此基准模型在一维模式下对多孔介质中的两相流进行建模,其中的流动可以通过 Buckley-Leverett 方程以解析方式进行描述。下载文件 推荐产品 COMSOL 6.2 COMSOL 6.1 COMSOL 6.0 buckley_leverett_model.mph - 1.46MB models.porous.buckley_leverett_model.pdf - 0.27MB models.ssf.buckley_leverett_model.pdf - ...
DerivationoftheBuckley-LeverettequationForadisplacementprocesswherewaterdisplacesoil,westartthederivationwiththeapplicationofamassbalanceofwateraroundacontrolvolumeoflength Δxofinthefollowingsystemforatimeperiodof Δt:Themassbalancemaybewritten: (qwρw)x−(qwρw)x+Δx[]Δt=AΔxφ(Swρw)t+Δt−(...
Buckley-Leverett方程Riemann问题的解。 Burgers_equation.m 代码语言:javascript 复制 clear all%***INPUT***geval=2;%=1:Initial condition:shock:example9.4.4%not=1:Initial condition:fan:example9.4.5tend=0.5;%Final time lambda=0.75;%lambda=dt/dxJ=40;%Numberofnodes.%***%***...
The Buckley-Leverett (BL) equation has been routinely used for the description of immiscible displacement in laboratory operations and for parameter estimation and prediction. Recent advances, however, have led to a serious challenge of the validity of many of the traditional theories. For the case...
The Buckley–Leverett (BL) equation58 describes the evolution in time and space of the wetting-phase (water) saturation. Let \(u_M:{\mathbb {R}}_0^+\times {\mathbb {R}}_0^+ \rightarrow [0,1]\) be the solution of the BL equation $$\begin{aligned}&\frac{\partial u_M}{\...
The system is formed by a hyperbolic equation and an elliptic equation coupled by a vector field which represents the total velocity of the mixture. The regularization is done by means of a filter acting on the velocity field. We consider the critical situation in which we inject pure water ...
Conservation lawsPotential symmetriesIn this work, we study a Buckley鈥揕everett equation of two-phase flow in porous media from the point of view of the Lie theory. We find that for some functions the equation has abundant exact solutions expressible in terms of Jacobi elliptic functions and ...