Results 81 to 90 of about 116,557 (189)

Preconditioning by an extended matrix technique for convection-diffusion-reaction equations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2008
In this paper we consider a preconditioning technique for the ill-conditioned systems arising from discretisations of nonsymmetric elliptic boundary value problems.
Aurelian Nicola, Constantin Popa
doaj   +2 more sources

Electrothermal Instability in a Porous Medium Layer Saturated by a Dielectric Nanofluid

open access: yesJournal of Applied Fluid Mechanics, 2016
The onset of convection in a porous medium saturated by a dielectric nanofluid with vertical AC electric field is investigated. The flux of volume fraction of a nanoparticle with the effect of thermophoresis is taken to be zero on the boundaries and the ...
D. Yadav, J Lee, H H Cho
doaj  

Gaussian quadrature method with exponential fitting factor for two-parameter singularly perturbed parabolic problem

open access: yesBMC Research Notes
The parabolic convection-diffusion-reaction problem is examined in this work, where the diffusion and convection terms are multiplied by two small parameters, respectively. The proposed approach is based on a fitted operator finite difference method. The
Shegaye Lema Cheru   +2 more
doaj   +1 more source

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