INVESTIGATING�THE�UNDERGROUND�WATER�FLOW�IN�DRAINS�THROUGH�FINITE�ELEMENT�METHOD

2012 ◽  
Author(s):  
Mohammad�Reza Jalali
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Water Flow ◽  
Underground Water ◽  
Element Method

scholarly journals The use of the finite-element method for the simulation of ground water flow

1988 ◽  
Vol 7 (4) ◽  
pp. 174-183
Author(s):  
G. J. Van Tonder ◽  
J. F. Botha
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Ground Water ◽  
Water Flow ◽  
Flow Model ◽  
The Finite Element Method ◽  
Ground Water Flow ◽  
Available Information ◽  
Good Flow ◽  
Element Method

The present investigation is mostly concerned with the contribution that the finite-element method can make towards the simulation of ground water flow. After a brief introduction to the finite element method, it is applied to the Grootfontein dolomitic aquifer near Mafikeng/Mmabatho. This aquifer yields water for irrigation purposes as well as water for the township. By utilizing the available information a good flow model was constructed for this aquifer. The model is considered calibrated and verificated.

scholarly journals Implementasi Metode Elemen Hingga Untuk Persoalan Aliran Air Pada Jaringan Pipa

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Cici Hayani ◽  
Tulus Tulus ◽  
Sawaluddin Sawaluddin
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Water Flow ◽  
Linear Interpolation ◽  
Navier Stokes ◽  
The Finite Element Method ◽  
Navier Stokes Equation ◽  
Water Flow Velocity ◽  
Boundary Field ◽  
Element Method

Pada zat cair yang mengalir di dalam bidang batas (contohnya pipa) akan terjadi tegangan geser dan gradien kecepatan pada seluruh medan aliran karena adanya kekentalan (viskositas). Penelitian ini bertujuan untuk melihat persoalan aliran air pada jaringan pipa yang diselesaikan dengan mengimplementasikan metode elemen hingga pada persamaan Navier-Stokes yang merupakan persamaan diferensial dasar yang menggambarkan aliran dari fluida Newtonian tak mampu-mampat. Dalam metode elemen hingga, medan aliran dipecah menjadi sekumpulan elemen-elemen fluida kecil (diskritisasi domain). Dalam penelitian ini peneliti menggambarkan aliran air pada bidang dua-dimensi (2D), kemudian dipilih fungsi interpolasi linier untuk elemen 2D, dan menurunkan elemen matriks dan vektor dengan metode Galerkin untuk mendapatkan persamaan Global. Hasil dari penelitian dengan bantuan komputer, memperlihatkan distribusi tekanan dan kecepatan aliran air untuk beberapa variasi bentuk pipa, yaitu pipa I dan pipa T, masing-masing juga dengan variasi posisi inlet/oulet. Hasil simulasi dengan COMSOL menunjukkan, bahwa terdapat hubungan antara tekanan dan kecepatan aliran air, kehilangan tekanan pada salah satu cabang pipa menyebabkan kecepatan aliran air menjadi tidak merata.   In liquid that flows inside the boundary field (e.g., pipe) there will be shear stress and velocity gradient in all flow fields due to viscosity. This study aimed to look at the problem of water flow in the pipe network solved by implementing the finite element method in the Navier-Stokes equation. This equation is a basic differential equation that describes the flow of incompressible Newtonian fluid. In the finite element method, the flow field is broken down into a set of small fluid elements (domain discretization). In this study the researcher described the flow of water in two-dimensional (2D) fields; then linear interpolation functions for 2D elements were selected and lowered the matrix and vector elements with the Galerkin method to obtain the Global equation. The results of the study with the help of computers showed the distribution of pressure and velocity of water flow for several variations in the shape of the pipe, namely pipe I and pipe T, each also with variations in position of inlet/outlet. The simulation with COMSOL showed that there was a relationship between the pressure and velocity of water flow, and the pressure loss on one of the pipe branches caused the water flow velocity to be uneven. 

Numerical Analysis of Bridge Caisson Foundation due to Riverbed Erosion

2013 ◽  
Vol 405-408 ◽  
pp. 342-348
Author(s):  
Wen Tsung Liu ◽  
Chia Chyi Chang ◽  
Kuei Hsiang Cheng ◽  
Chen Wei Chi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Water Flow ◽  
Warning System ◽  
Bridge Pier ◽  
Scour Depth ◽  
Flood Level ◽  
Simulating Analysis ◽  
The Impact ◽  
Element Method

Keywords： Scour Depth, Water flow Force, Finite Element Method ABSTRACT. In recent years, the researches on the impact stability of piers based on river erosion are concerned in Taiwan. Therefore, it is an important issue to estimate accurately the scour depth, to calculate the water flow force on bridge pier, and to establish the close mechanism of bridge for saving lives. This research is a case study on Paulon Bridge by finite element method (FEM) Plaxis 3D Foundation for simulating analysis the caisson foundation in bridge pier scour. Firstly, we infer the flood level, the speed of flow in the different frequency year, the whole bridge safety coefficient, and the inclination angle of pile based on the simulating analysis to build the warning system. We compare the data by FEM and observing data in order to confirm the validity of FEM.

Selective lumping finite element method for shallow water flow

1982 ◽  
Vol 2 (1) ◽  
pp. 89-112 ◽  
Author(s):  
Mutsuto Kawahara ◽  
Hirokazu Hirano ◽  
Khoji Tsubota ◽  
Kazuo Inagaki
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Shallow Water ◽  
Water Flow ◽  
Shallow Water Flow ◽  
Element Method

Simulation of water flow and heat transfer in soils by means of a mixed finite element method

1999 ◽  
Vol 22 (5) ◽  
pp. 445-460 ◽  
Author(s):  
L.M. Chounet ◽  
D. Hilhorst ◽  
C. Jouron ◽  
Y. Kelanemer ◽  
P. Nicolas
Keyword(s):  
Heat Transfer ◽  
Finite Element Method ◽  
Finite Element ◽  
Water Flow ◽  
Mixed Finite Element ◽  
Mixed Finite Element Method ◽  
Flow And Heat Transfer ◽  
Element Method
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