Finite Difference Method of Modelling Groundwater Flow

Particle Velocity Interpolation in BlockCentered Finite Difference Groundwater Flow Models

A block-centered, finite difference model of two-dimensional groundwater flow yields velocity values at the midpoints of interfaces between adjacent blocks. Method of characteristics, random walk and particle-tracking models of solute transport equire velocities at arbitrary particle locations within the finite difference grid. Particle path lines and travel times are sensitive to the spatial i...

Comparison of Explicit Finite Difference Model and Galerkin Finite Element Model for Simulation of Groundwater Flow

Abstract— This paper describes Galerkin finite element (FEFLOW) models for the simulation of groundwater flow in twodimensional, transient, unconfined groundwater flow systems. This study involves validation of FEFLOW model with reported analytical solutions and also comparison of reported Explicit Finite Difference Model for groundwater flow simulation (FDFLOW). The model is further used to ob...

The Finite Layer Method for Groundwater Flow Models

An Eecient Probabilistic Finite Element Method for Stochastic Groundwater Flow

We present an eecient numerical method for solving stochastic porous media ow problems. Single-phase ow with a random conductivity eld is considered in a standard rst-order perturbation expansion framework. The numerical scheme, based on nite element techniques , is computationally more eecient than traditional approaches, because one can work with a much coarser nite element mesh. This is achi...

buckling of viscoelastic composite plates using the finite strip method

در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....