scholarly journals Numerical Analysis on Flow and Solute Transmission during Heap Leaching Processes

2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
J. Z. Liu ◽  
A. X. Wu ◽  
L. W. Zhang
Keyword(s):  
Fluid Flow ◽  
Numerical Analysis ◽  
Numerical Solutions ◽  
Volumetric Strain ◽  
Coupling Model ◽  
Solution Concentration ◽  
Heap Leaching ◽  
Flow Coupling ◽  
Rock Skeleton ◽  
Concentration Curves

Based on fluid flow and rock skeleton elastic deformation during heap leaching process, a deformation-flow coupling model is developed. Regarding a leaching column with 1 m height, solution concentration 1 unit, and the leaching time being 10 days, numerical simulations and indoors experiment are conducted, respectively. Numerical results indicate that volumetric strain and concentration of solvent decrease with bed’s depth increasing; while the concentration of dissolved mineral increases firstly and decreases from a certain position, the peak values of concentration curves move leftward with time. The comparison between experimental results and numerical solutions is given, which shows these two are in agreement on the whole trend.

scholarly journals Numerical analysis of MHD casson fluid flow over an exponentially accelerated vertical plate in embedded porous medium with ramped wall temperature and ramped surface concentration in uniform magnetic field

2020 ◽  
Vol 9 (2) ◽  
pp. 89
Author(s):  
Ch. Vijaya Bhaskar ◽  
Siva Reddy Sheri ◽  
Anjan Kumar Suram
Keyword(s):  
Porous Medium ◽  
Fluid Flow ◽  
Numerical Analysis ◽  
Wall Temperature ◽  
Present Method ◽  
Uniform Magnetic Field ◽  
Vertical Plate ◽  
Numerical Solutions ◽  
Surface Concentration ◽  
Casson Fluid

<div data-canvas-width="162.73488208022576">Numerical analysis of MHD casson fluid flow over an exponentially accelerated vertical plate in embedded porous medium with ramped wall temperature and ramped surface concentration has investigated in the current investigation. The flow governing dimensional velocity, temperature and concentration differential equations are converted into non dimensional form by using non-dimensional variables. Numerical solutions to the converted equations are obtained by finite element method. The results are presented graphically and in tabular form for various controlling parameters. In order to highlig ht the validity and accuracy of our present method, we have compared our results with the results obtained earlier. A very good validation of the present numerical results has been achieved</div><div>.</div>

NUMERICAL ANALYSIS OF NEWTONIAN FLUID FLOW VARYING THE CONTRACTION GEOMETRY USING OPENFOAM

2019 ◽  
Author(s):  
João Pedro Costa Eliziário ◽  
andrevidy honório ◽  
Marcos Lourenço ◽  
Elie Luis Martínez Padilla
Keyword(s):  
Fluid Flow ◽  
Numerical Analysis ◽  
Newtonian Fluid

scholarly journals Numerical Analysis of Viscoelastic Rotating Beam with Variable Fractional Order Model Using Shifted Bernstein–Legendre Polynomial Collocation Algorithm

2021 ◽  
Vol 5 (1) ◽  
pp. 8
Author(s):  
Cundi Han ◽  
Yiming Chen ◽  
Da-Yan Liu ◽  
Driss Boutat
Keyword(s):  
Numerical Analysis ◽  
Fractional Order ◽  
Governing Equation ◽  
Numerical Solutions ◽  
Bernstein Polynomials ◽  
Matrix Product ◽  
Algebraic Equations ◽  
Rotating Beam ◽  
The Matrix ◽  
The Time Domain

This paper applies a numerical method of polynomial function approximation to the numerical analysis of variable fractional order viscoelastic rotating beam. First, the governing equation of the viscoelastic rotating beam is established based on the variable fractional model of the viscoelastic material. Second, shifted Bernstein polynomials and Legendre polynomials are used as basis functions to approximate the governing equation and the original equation is converted to matrix product form. Based on the configuration method, the matrix equation is further transformed into algebraic equations and numerical solutions of the governing equation are obtained directly in the time domain. Finally, the efficiency of the proposed algorithm is proved by analyzing the numerical solutions of the displacement of rotating beam under different loads.

Numerical analysis of fluid flow dynamics around a yawed half-submerged cylinder inside an open channel

2021 ◽  
Vol 33 (1) ◽  
pp. 111-119
Author(s):  
M. I. Alamayreh ◽  
A. Fenocchi ◽  
G. Petaccia ◽  
S. Sibilla ◽  
E. Persi
Keyword(s):  
Fluid Flow ◽  
Numerical Analysis ◽  
Open Channel ◽  
Flow Dynamics ◽  
Submerged Cylinder

scholarly journals A numerical analysis of fluid flow and heat transfer in wavy and curved wavy channels

2022 ◽  
Vol 171 ◽  
pp. 107248
Author(s):  
L.Y. Zhang ◽  
R.J. Duan ◽  
Y. Che ◽  
Z. Lu ◽  
X. Cui ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Numerical Analysis ◽  
Flow And Heat Transfer ◽  
Wavy Channels

Rotating elliptic cylinders in a viscous fluid at rest or in a parallel stream

1977 ◽  
Vol 79 (1) ◽  
pp. 127-156 ◽  
Author(s):  
Hans J. Lugt ◽  
Samuel Ohring
Keyword(s):  
Reynolds Number ◽  
Fluid Flow ◽  
Numerical Solutions ◽  
Elliptic Cylinder ◽  
The Body ◽  
Oscillatory Behaviour ◽  
Incompressible Fluid Flow ◽  
Transient Period ◽  
Parallel Stream ◽  
Rotating Bodies

Numerical solutions are presented for laminar incompressible fluid flow past a rotating thin elliptic cylinder either in a medium at rest at infinity or in a parallel stream. The transient period from the abrupt start of the body to some later time (at which the flow may be steady or periodic) is studied by means of streamlines and equi-vorticity lines and by means of drag, lift and moment coefficients. For purely rotating cylinders oscillatory behaviour from a certain Reynolds number on is observed and explained. Rotating bodies in a parallel stream are studied for two cases: (i) when the vortex developing at the retreating edge of the thin ellipse is in front of the edge and (ii) when it is behind the edge.

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