scholarly journals EFFECT OF CHARGE MODULATION ON THE ELECTROCONVECTIVE FLOW OF A LOW CONDUCTING LIQUID

2021 ◽  
Author(s):  
Oleg Nekrasov ◽  
Boris Smorodin
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Traveling Waves ◽  
Nonlinear Evolution ◽  
Fluid Layer ◽  
Conducting Liquid ◽  
Phase Velocities ◽  
Charge Modulation ◽  
Stable Solutions ◽  
Amplitude And Frequency Modulation

Nonlinear evolution of the electroconvective flow patterns is analysed in a horizontal low conductive fluid layer under heating  from above and under modulated charge injection.  To examine the complex evolution of the system, numerical simulations  are carried out using a finite difference method. The influence of  amplitude and   frequency modulation on the  oscillatory electroconvection is studied.    Traveling waves with modulated amplitudes and phase velocities and synchronously modulated patterns are found as stable solutions.

HEAT TRANSFER IN LARGE RUBBER ELEMENTS THROUGH OF MODELING BY FINITE DIFFERENCE METHOD

2019 ◽  
Author(s):  
Lucas Peixoto ◽  
Ane Lis Marocki ◽  
Celso Vieira Junior ◽  
Viviana Mariani
Keyword(s):  
Heat Transfer ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method

Weighted Finite Difference and Boundary Element Methods Applied to Groundwater Pollution Problems

1991 ◽  
Vol 23 (1-3) ◽  
pp. 517-524
Author(s):  
M. Kanoh ◽  
T. Kuroki ◽  
K. Fujino ◽  
T. Ueda
Keyword(s):  
Boundary Element Method ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Boundary Element ◽  
Difference Method ◽  
Groundwater Pollution ◽  
Small Region ◽  
Boundary Element Methods ◽  
Computational Time ◽  
Element Method

The purpose of the paper is to apply two methods to groundwater pollution in porous media. The methods are the weighted finite difference method and the boundary element method, which were proposed or developed by Kanoh et al. (1986,1988) for advective diffusion problems. Numerical modeling of groundwater pollution is also investigated in this paper. By subdividing the domain into subdomains, the nonlinearity is localized to a small region. Computational time for groundwater pollution problems can be saved by the boundary element method; accurate numerical results can be obtained by the weighted finite difference method. The computational solutions to the problem of seawater intrusion into coastal aquifers are compared with experimental results.

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