A two-dimensional finite element model of biofouling of porous media

  • 1.24 MB
  • English
National Library of Canada = Bibliothèque nationale du Canada , Ottawa
SeriesCanadian theses = Thèses canadiennes
The Physical Object
Pagination2 microfiches : negative.
ID Numbers
Open LibraryOL14777910M
ISBN 100315785373

As such, the research, although very active, can only be referred to as being in its beginning stage (Olson, ). A summary of its recent applications to flows through porous media, shallow water circulation, and two-dimensional viscous flows had been presented by Connor and Brebbia ().

A hydromechanical model with explicit fracture flow is presented for the fully coupled analysis of flow and deformation in fractured porous media.

Extended finite-element method (XFEM) was utilized to model the fracture discontinuity in the two-dimensional plane-strain mechanical by: @article{osti_, title = {Simulation of two-dimensional waterflooding using mixed finite elements}, author = {Chavent, G and Jaffre, J and Cohen, G and Dupuy, M and Dieste, I}, abstractNote = {A new method for the simulation of incompressible diphasic flows in two dimensions is presented, the distinctive features of which are: (1) reformation of the basic.

This paper presents the formulation of a three-dimensional finite element model designed to simulate ground-water flow and contaminant transport in complex multi-layered aquifer systems. The model combines the use of two-dimensional basis functions in the x-y plane and one-dimensional basis functions in the by: 5.

A two-grid block-centered finite difference method is proposed for solving the two-dimensional Darcy--Forchheimer model describing non-Darcy flow in porous media. To construct the two-grid method we modify the original nonlinear elliptic operator of Darcy--Forchheimer flow to a twice continuously differentiable one by introducing a small and Cited by: This paper proposes a numerical model for the fluid flow in fractured porous media with the extended finite element method.

The governing equations account for the fluid flow in the porous medium.

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In this study, a water balance model incorporating a two-dimensional finite element groundwater flow model of the saturated-unsaturated zone is presented. This model takes into consideration different hydrologie parameters such as rainfall, soil evaporation, crop transpiration, inter­ ception, infiltration, depression storage, and surface runoff.

This report documents a two-dimensional finite element model, SAMFT2D, developed to simulate single-phase and multiphase fluid flow and solute transport in variably saturated porous media. The formulations of the governing equations and the numerical procedures used in the code for single-phase and multiphase flow and transport are presented.

An introductory textbook covering the fundamentals of linear finite element analysis (FEA) This book constitutes the first volume in a two-volume set that introduces readers to the theoretical foundations and the implementation of the finite element method (FEM).

The first volume focuses on the use of the method for linear problems. A general procedure is presented for the finite element. We construct coarse grid approximation using Generalized Multiscale Finite Element method (GMsFEM). In this method, we solve local spectral problems for construction to the multiscale basis functions for pressure and displacements.

We present numerical results for two - dimensional model problem. A coupled hygromechanical model for finite-element analyses of structures made of cementitious materials such as concrete or plaster is formulated within the framework of thermomechanics of partially saturated porous media.

In this paper the development of a two‐dimensional elastic‐absorption finite element model of isotropic elastic porous noise control materials is described. A method for coupling elastic‐absorption finite elements with conventional acoustic finite elements is also presented for the cases when the interface between the adjacent air space and the foam is either.

Fugaza, M., and M. Gallati:A Finite Element Numerical Model of the Two Dimensional Shallow Water Motion Z., and M. Amein:‘Finite Element Computation of Two-Dimensional Unsteady Flow for River Problems,’ Proc ‘Numerical Model for Satured-Unsatured Flow in Deformable Porous Media.

The Algorithm,’ Water. This study utilizes a finite element model to characterize the transendothelial transport through overlapping endothelial cells in primary lymphatics during the uptake of interstitial fluid. The computational model is built upon the analytical model of these junctions created by Mendoza and Schmid-Schonbein (, “A Model for Mechanics of.

NAME modfe - Modular finite-element model for areal and axisymmetric ground-water flow problems ABSTRACT This MODular, Finite-Element digital-computer program (MODFE) was developed to provide solutions to ground-water-flow problems based on the governing equations that describe two-dimensional and axisymmetric-radial flow in porous media.

Publisher Summary. This chapter presents an introduction to the mathematics of the finite element method. The finite element method is a very successful application of classical methods, such as (1) the Ritz method, (2) the Galerkin method, and (3) the least squares method, for approximating the solutions of boundary value problems arising in the theory of elliptic.

can be understood by independent study, others (e.g., Finite Element Method) should be the subjects of specialized classes. Thus, most of this class is de-voted to the study of single-phase (water), uniform-density flow moving through non-deforming porous media (e.g., groundwater aquifers that are not.

Problems Using the Finite Element Method, Ph.D Thesis, Michigan State Unversity.

Description A two-dimensional finite element model of biofouling of porous media PDF

Matanga, G. and E. Frind. An evaluation of mathematical models for mass. () A fast finite difference/finite element method for the two-dimensional distributed-order time-space fractional reaction–diffusion equation.

International Journal of Modeling, Simulation, and Scientific ComputingIn this paper, the finite element method (FEM) is used to solve the three-dimensional poroelasticity problem in acoustics based on the isotropic Biot–Allard theory.

A displacement finite element model is derived using the Lagrangian approach together with an analogy with solid elements. From this model, it is seen that the “damping” and “stiffness” matrices of the poroelastic media. literature in porous media in their book ‘Convection in porous media’.

‘Fundamentals of Finite Element Method for Heat and Fluid Flow’ by Lewis, Nithiarasu and Seetharamu [15] provides the method of FEM applied to porous media. There are works on MHD in porous media. However most of them are restricted to two dimensional porous.

As the hot pyrolysis gas travels inside the porous ablator, it carries a great deal of energy, which enhances the solid temperature in the downstream region. Also, blowing the gas into the freestream has reduced the net convective heat flux, resulted in a decrease in the heat penetration area inside the ablator and char depth in the vicinity of.

Get this from a library. Finite Elements in Water Resources: Proceedings of the 5th International Conference, Burlington, Vermont, U.S.A., June [J P Laible; C A Brebbia; W Gray; G Pinder] -- This book is the edited proceedings of the Fifth International Conference on Finite Elements in Water Resources, held at the University of Vermont, USA in June In this paper, the solution of the Darcy-Forchheimer model in high contrast heterogeneous media is studied.

This problem is solved by a mixed finite element method (MFEM) on a fine grid (the reference solution), where the pressure is approximated by piecewise constant elements; meanwhile, the velocity is discretized by the lowest order Raviart-Thomas elements.

Several time steps are shown with a new initial guess needed at each step. In using Powell's FORTRAN subroutine program, the following parameters are employed: DSTEP =ACC =DMAX = 50, N = 20, FLOW IN POROUS MEDIA and MAXFUN = The finite element results are compared with values obtained from Swartzendruber [8].

A First Course in Finite Elements This model simulates the time-dependent flow past a cylinder. The velocity field magnitude at different time steps is shown. A First Course in Finite Elements Historical Background Basic ideas of the finite element method originated from advances in aircraft structural analysis.

Oancea, V.G. & T.A. Laursen (), ``Dynamics of a State Variable Frictional Law in Finite Element Analysis,'' Finite Elements in Analysis and Design, 22, Donescu, P. & T.A. Laursen (), ``A Generalized Object-Oriented Approach to Solving Ordinary and Partial Differential Equations Using Finite Elements,'' Finite Elements in Analysis.

model into mathematical terms and the result is a mathematical model. Presently it has become common practice in many national laboratories and research centers to use numerical models to solve the governing equations describing contaminant transport in porous media.

There is a very large number of potential sources of groundwater contamination. An enriched finite element model for wave propagation in fractured media Finite Elements in Analysis and Design (): (link) Sarkarfarshi, A & Gracie, R.

An adaptive response surface method for continuous Bayesian model calibration.

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Stochastic Environmental Research and Risk Assessment (): Get this from a library. Finite element analyses of coupled heat and moisture transport in cylindrical porous media and coal logs. [Ssu-Hsueh Sun] -- The purpose of this study is to determine the transient temperature and moisture distributions within finite porous solid cylinders during heating, cooling, and drying.

This study includes a. Mesh Dependencies for Highly Anisotropic Flows in Porous Media. Hybrid Finite Elements: Advantages and Disadvantages for the Modelling of Forming Processes. Performance of Integro-Differential Closure Equations for Two-Dimensional Turbulence. On the Computation of Stability Limits for Fusion Experiments.A finite element analysis of a control rod blade consisting of B C powder and stainless steel cladding has been performed using the ADINA program.

An algorithm for finite element calculations of a porous material such as BC powder has been developed. This algorithm describes both the swelling and consolidation behavior of BC powder.

The Garson vield condition for isotropic porous. Ch fluid flow through porous media 1. Finite Element Method Department of Mechanical Engineering, IIU Islamabad Fluid Flow Through Porous Media • One Dimensional • Two Dimensional 2. Group Members Syed Atif Iqrar (FET/BSME/F13) Ali Hasnain (FET/BSME/F13) 3.